Find They Key Fragments! is the sixth plot scenario in Hyperdimension Neptunia.
As the trio arrives to Lastation, the first thing they do is head to the Basilicom to gather information on monsters. However, one the Basilicom moderators rudely turns them away. Having no other choice, the girls start to collect information in town, taking on miscellaneous bounty hunting jobs. They end up working for a woman by the name of Chian who runs one of the smaller factories, callled Passe, that are affected by the monopolizing conglomerate known as Avenir.
During their time in Lastation they begin to help Chian prepare for the Technology Expo so that they can meet with the goddess of that land and strike up a negotiation regarding Avenir as well as asking for information regarding the Key Fragment. However, in the midst of preparing for the Expo, a public broadcast from the Basilicom states that it has been canceled.
Unsure of what to do next, the party continues their search for the Key Fragment and continue taking other jobs. They run into Black Heart who claims to be looking for Neptune. She attacks Neptune and her friends with hesitation, but loses. She states that she will crush her next time, before fleeing. This leaves the girls to question what exactly Neptune did to her before she lost her memory.
The search for the Key Fragment resumes, and the party decides to search for Heretic to gain more information regarding the Lastation Basilicom. When they meet with him they all learn of Overlord Momus who is supposedly stronger than the goddesses. Neptune is contacted by Histoire shortly after this, and is told to be wary of Arfoire who has become aware of her existence and will be coming for her soon. IF deduces that there is a possibility that Overlord Momus and Arfoire are the same person.
Chian gets over the debilitating news about the canceled Expo and asks for the party to deliver some materials from a shop. They meet a man named Chevre, who is an old friend of Chian's. He claims that Avenir is under the direct protection of the Parliament due to Avenir holding the biggest market on Lastation which allows the Parliament to do whatever they want due to needing the votes of the people in order to execute an order. This gives the party a reason to focus on Avenir more.
As requested by Avenir, the party journeys to a dungeon where an Avenir employee is said to be. They meet a man named Ganache who is their target of rescue. From him, they learn that the Expo is still going on as it normally does, and says that Avenir plans to display is something that has been in the preparation stages for three years.
The girls encounter Black Heart for a second time and are attacked. They manage to defeat her, but she flees without giving any information on Neptune's past. Neptune lets her get away due to be tired after their battle, and the group heads back to Chian's restaurant to hear the details of the Expo being reopened on the radio. They learn that the Expo will be under Parliament sponsorship, and when they tell Chian that Avenir has been in the preparation stages for Expo for three years even though the theme was just decided the year of the Expo, Chian comes to the conclusion that Avenir forced the decision for the theme to be weaponry.
Meanwhile, Lady Black Heart meets with Ganache, locking everyone else from the Basilicom out of her room. There they discuss an ambiguous plan to deal with Neptune. Few jobs reach the factories of Lastation due to Avenir's monopolization. The party continues to do work around Lastation and eventually encounter Black Heart for a third time and face off against her.
The party defeats her yet again and before she flees she states that the entire landmass will eventually assault Neptune. Neptune chases after to her, to see if she can ask her everything about her past but ends up encountering Noire (Black Heart's human form). Neptune sees that she's injured and takes her back into town with her. Compa treats her wounds and they ask her where she comes from. Noire claims to have amnesia and that she doesn't remember where she came from. They decide to let her stay with them until she remembers something.
During their time together, Neptune forms a bond with Noire and the two become friendly with one another. However, the next day Noire leaves without a word, leaving only a note saying that she has recovered her memories. Neptune is saddened by this, upset at having lost her 'amnesiac best buddy.' The party heads to Chian's restaurant upon receiving another request from her. Chian requests for them to work at at her booth during the Expo since they're showcasing weaponry. She then lends Neptune to test model for her weapon to find anything that needs improvement.
The girls receive another request from Avenir, one of their regular clients. They find a familiar face, Ganche, waiting for them at their job site. He requests for the trio to collect some important materials stored away within the facility. As they enter the facility, Ganache locks them inside to be eaten by the monsters. He tells them that building will explode in a few minutes so the trio makes haste to find another way out.
They manage to escape and are about to head to Chian's place until Chian herself comes and tells them that Avenir's robots have invaded her factory. They rush to Chian's shop and see that everything has been ruined. After they deal with the threat, Chian takes back the test model in order to add some modifications. The group brainstorms a way to defy Avenir as Chian takes care of Expo Preparations. They head out to locate heretics purged, or exiled, by the Basilicom's Sanctuary. They find a Heretic in a dungeon who tells them that the sanctuary relocated to Colline, where the old Basilicom used to be.
When they girls arrive to the old Basilicom, they are greeted by one of the Sanctified and discuss a way to expose the Parliament and Avenir's connection. To obtain the bio-hardware developed by Avenir which could serve as proof to their connection, the trio backtracks to one of places they preformed work for Avenir. They end up seeing Ganache who claims to be questioning the motives of the company and wishes to help them take Avenir down. He also requests to see the Sanctified in the old Basilicom so he can explain everything to them.
One of the Sanctified visits the girls in Chian's restaurant to inform them that Ganache has told them everything and has even given them the hardware they needed. He also states that they will require the party's help on the day of the raid. On the day of the Expo, the party prepares to raid Avenir's headquarters. It was expected they wouldn't have a large defensive force, but find it to be brimming with enemies.
They make their way through a giant work area/storage place that leads to the president's room. When they arrive they are surprised to see Ganache there instead of Singe, who was their primary target. Ganache informs them that the foundation of Avenir was all just one big plot in order to defeat Neptune and that the weapon Avenir has developed for the Expo is not only meant to take down Neptune, but will also do something regrettable if they do not make it in time. When they arrive, the Expo site is unexpectedly silent. They find the giant robot developed by Avenir along with Chian and Singe. Chian gives Neptune the completed Mech Sword Armas to use against Avenir's machine to display what it can do. They win, and Black Heart appears soon after to thank me before leaving. Neptune, Compa, and IF help Chian clean up the damage caused by the fight and call the Basilicom.
Everyone heads to the Basilicom where they were personally invited by the CPU. They are surprised to see that the guardian goddess of Lastation is in fact Noire, the injured girl they met before. She gives them information regarding where they may find the Lastation Key Fragment and the girls quickly head out to location described by her. They encounter Black Heart who states that this is her last attempt to finish Neptune off before she leaves Lastation. When she is defeated, Purple Heart says that next time they meet, they can fight one on one. Black Heart says it isn't over and that she'll pay her back someday before leaving. After defeating the Guard Vermin and obtaining the Lastation Key Fragment, the girls are finally able to leave Lastation and make their way to the next land.
The girls go to a Basilicom to ask about monsters. However, they are redirected to the Central Basilicom, Entemets, and receive a map that shows them how to get there. In order to get to Entremets, travelers must proceed through the Dis Snow Forest which serves as the forest protecting the Central Basilicom.
When they arrive to the Basilicom to ask the CPU, Blanc, about strong monsters and Key Fragments they are rudely kicked out by her. Conversation arrives not too long after and gives Blanc a lecture on how her behavior is unbecoming of a goddess. After receiving a list of all Lowee's monster-infested dungeons from White Heart's Chamberlain, Finacier, Lowee's Evangelist greets the trio. She mentions the existence of Overlord Momus who I rumored to be stronger than the goddess. She claims that the monsters are Overlord Momus' vassals and that defeating them will lead to punishment.
The party treks a to a dungeon mentioned by Financier, White Heart's loyal chamberlain. They encounter White Heart and are attacked. They manage to defeat her, and White Heart flees immediately after. Neptune questions why White Heart was after her, not being able to recall ever meeting her before.
No matter the number of the powerful foes they defeat, no clue on the Key Fragment surfaces. They head back to the Basilicom, however they are turned away by Financier who tell them that their goddess is not seeing any guests today. After the girls leave, IF exposes herself as a member of the guild. Shortly after, Financier arrives and is revealed to also be a Guild member. Finacier explains the history behind the Guild's creation and Guild City. She then reveals a pathway connecting the Central Basilicom to Guild City. The party checks the entrance, but of course, things are never so simple. The tunnels are file with monsters due to tunnels never having been used. This requires the trio to fight them as they proceed through.
Neptune and the others make it into Entremets without a hitch and Blanc decides to hear her out, telling Financier to take Compa and IF away. Neptune asks her about the Key Fragment again and Blanc yells at her, saying she has no intention to tell her anything, even if she did know something. When Blanc comes to the realization that Neptune really has lost her memories, her attitude changes entirely and tells Neptune to write her questions on a piece of paper and give them to Finacier so she can write back later.
The Group visits another town to annihilate some monsters. According to IF, the town is a city ruled by Guild Extremists. IF teaches them about Guild Moderatists and Guild Extremists before the Extemist representative explains the details of their job. The then team gets a bounty request from Lowee's Central Basilicom. The party heads to a forest where a Troll has taken residence. They encounter White Heart who attacks them for a second time. Naturally, Neptune and her party defeats her and she flees immediately after.
A townsperson submits a bounty request. This time, the target is a Gold Dragon holed up in a tower. When inside they meet a Heretic who mistakes them for the Overlord's Messenger. When they clarify that they're just there to defeat monsters, he says the Overlord's messenger will arrive and deliver punishment to them all. They find one of his discs and accidentally break it, causing a monster to come out. While they are occupied fighting the monster, the heretic runs away.
While the party continues to fight monsters, they are confronted by Arfoire who claims to be the Overlord's messenger. They are attacked by her but manage to defeat her. Arfoire runs away immediately after.
The party encounters White Heart once more and are attacked yet again, however this time the capture her and try to ask her questions about Neptune's past, however she manages escape without telling them anything. White Heart reverts back to human form, Blanc, after the battle and is found by Neptune and the others. She is mistaken for a lost girl and they take her back to town with them.
Back in town, they take Blanc back to the inn with them where she refuses to speak. IF suggests that Neptune take Blanc outside for a little walk to loosen her up. The two of them go to a crepe shop and have a conversation. Blanc tells Neptune shouldn't try to get her memories back because it would be better for everyone.
Monsters continue to mercilessly ravage the land of Lowee. IF tells Blanc she can stay in the inn or go home whenever she wants before they head out to the new dungeon. White Heart before before them again and initiates them in combat. After her defeat, instead of trying to press her for information regarding her past, Neptune says she doesn't want to know and White Heart calls her a coward, saying the reason she doesn't want to know anything is because she's scared.
Meanwhile. Some Guild Extremists resort to violence when their faith is questioned. They hide in Lowee's shadows and plot to take down the Basilicom. Arfoire pays Ganache, the head of the Lastation Extremist Guild, a visit and says she wishes for them to attack the Basilicom under her direct command. While skeptical of her at first, but Arfoire convinces him to place his trust in her as she can supposedly lead them to victory.
Back at the Inn, Compa announces that a monster that appeared out of nowhere is attacking town. The girls head out to the place where the monster is located and make quick work of it. Compa notices a heretic near the site of the monster raid inside of town. The team creates a tentative connection between the monsters and heretics.
The girls track the Heretic down and interrogate him about the discs that contain monsters in them, however due to Neptune's carelessness they find themselves trapped inside a disc themselves. They find a monster inside the disc and defeat, thus freeing themselves. The heretic admits defeat and reveals the monster's source, the monster discs handed out by the Overlord's messenger. No information regarding the Key Fragment is found. After, they discuss their next course of action. With the messenger being the source of the monster discs, they decide to deal with the messenger directly.
Meanwhile, an unexpected visitor surprises the party. Financier comes to the inn where Neptune, Compa, and IF are staying. She requests their help in calming down the goddess. She says that one of the Guild members have found out that the Extremists are planning to raid Entremets, but Financier is afraid to tell the goddess about it because she might find out she's a Guild member. Financier leads the party to the underground tunnel so that they can hurry to the Basilicom.
When they arrive, Purple Heart is surprised to see that Blanc is the goddess of Lowee and tries to convince her to leave. Finacier informs Blanc that the Extremists are raiding the Basilicom and that the Overlord's messenger is among them. However due to Blanc's stubbornness, they resort to taking her against her will. Everyone secretly moves Blanc out of the Basilicom, but their movements were already taken into account by their foes. The return to the underground path, leaving the CPU at the inn. In order to stop the source of the monsters, the party writes threatening letters to lure out the Overlord's Messenger. Each writes their own, hoping one will strike a nerve. Their plan is successful and Arfoire pays them a visit. The party fights her and wins, thus concluding the issue.
The group is suddenly invited to Lowee's Basilicom by Blanc. She thanks them for their efforts and states that the Extremists scattered and ran after the messenger was defeated. She also tells them location of Lowee Key Fragment. They head to place described by Blanc and defeat the Guard Vermin guarding the Key Fragment. Neptune questions if Compa's school has opened up again since they've been traveling, but IF checks in with a Guild member who says none of the schools have been opened back up yet, thus putting Compa's fears to rest.
Following Histoire's advice that Key Fragments are guarded by powerful monsters, the party first heads ot Leanbox's Basilicom. They meet an Lowee Evangelist by the name of Conversation, who claims to travel around and spread the word of their CPU. They also meet Yvoire, the Archbishop who gives them a detailed map that has monster territories marked. While the map is certainly detailed, it tells them nothing about the monster's strength. The girls head back to the Basilicom to gather more information. Yvoire gives them a military map and says that the Basilicom may ask for their assitance formally sometime soon.
At night, Yvoire meets with Conversation and she informs him on the Console War in Celestia. She tells him that Celestia was severely razed by Overlord Momus and that the goddesses came to human world to escape him. She tells him to kill Neptune to cease the protection for Planeptune which will ultimately cause the inhabitants to migrate to other lands and convert.
Yvoire pays Neptune a visit at the inn she and the others are staying in. He gives her an invitation from Lady Green Heart to a banquet party. At the party, Yvoire pulls IF to the side and tries to convince her to kill Neptune by saying she'll be granted official membership as a citizen of Leanbox and will no longer be branded a heretic, freely able to proudly worship Green Heart.
IF demands proof that killing Neptune is truly what Leanbox's CPU wants. Yvoire states that he'll organize a meeting for IF to meet the goddess. When she meets with her, Vert is very friendly with her and tells IF she does not need to address her so formally. The two of them play games together and Vert even calls her by her nickname, Iffy.
In exchange for her meeting with the CPU, IF is given a vial of poison. Not able to comprehend the complicated emotions troubling IF, Neptune thinks all is well. IF can't bring herself to poison Neptune, but Yvoire takes action and poison's her himself by sneaking poison into the food delivered by the innkeeper. He then locks all three of them up in the Leanbox Basilicom's holding cell, however they are rescued by a mysterious man while Neptune remains unconscious from the poison coursing through her veins.
He introduces himself as Jade, one of the aristocrats of Leanbox. When asked why he helped, he states that he only aided them because he felt bad for them. He also mentions that the aristocrats are plotting a coup-d'etat against the Sanctuary to he Basilicom. With Neptune still being unconscious from the poison, Jade tells IF and Compa about the recipe for an antidote.
IF and Compa go out and collect the necessary ingredients for the antidote while Jade watches over Neptune. Compa and IF struggle without Neptune in the party. While the others are making the antidote, Neptune has another dream about a conversation between Arfoire and Histoire regarding the Key Fragments and Histoire contacting the CPUs. Just as Arfoire says she's going to silence Histoire's useless mouth for not telling her anything, Neptune wakes up.
Turquoise, Jade's father and leader of the Aristocrats, meets with them. IF asks again why Jade helped them. Turquoise states that he wants them to be their sexy mascot allies to fight against the Basilicom Sanctuary. The girls refuse, so Turquoise offers they help by fighting monsters instead. The crew ends up agreeing to help the Aristocrats regarding monster bounty quests. The Aristocrat leader eventually gathers them up for a meeting. The Aristocrat leader requests for the girls to clear out a very old trading route rife with monsters so that they can use it to transport weaponry out of the Basilicom's view.
When the girls return to the manor, Purple Heart speaks with Jade about the pathway they intend to use to transport weaponry. Jade shows her a weapon manufactured by Avenir, and Purple Heart states that she remembers Basilicom prohibiting trade between landmasses, since the standards vary greatly between them. Purple Heart express concern for his for his actions, believing that something such as this cannot be overlooked. However Jade states that if she intends to interfere that he will do as he pleases.
The trio receives another invitation form the Basilicom. This time, it is the Leanbox CPU herself, who wishes to apologize for the poisoning debacle. IF asks for information regarding the Key Fragment, Vert directs them to the Evangelist, Conversation. She says that she knows nothing of the Key Fragment, but tells them of a strange dungeon she had passed earlier. She even shows them the way. However, the Evangelist ends up sealing them inside, leaving them to find another way out.
Enraged by the Evangelist's actions, the group returns to the Basilicom. However, they encounter Green Heart who states that Conversation told her that the poisoning incident was all their own act. She believes that their goal was to bring down the Basilicom by spreading a story about being poisoned by them. She engages them in battle and leaves after being defeated by them.
Vert comes to visit Neptune at the inn. During their conversation, Vert realizes that Neptune has lost her memory. Vert also addresses the matter of them assisting the Aristocrats in taking down the Basilicom. The trio explains their side of the story, and also mention Conversation trapped them in the dungeon. This leads to Vert deciding to assist them in investigating the matter.
Through Vert's research, the party learns the Evangelist is heading toward a dungeon where someone else is waiting. Conversation meets with Jade to discuss taking down the Basilicom, and Jade reveals his plan to raid the Aristocrat mansion. The team parts with Vert and goes to meet with the Aristocrat leader to warn him. They tell him that Jade is a member of the Guild and is using the Aristocrats to raid the Basilicom. While Turquoise is skeptical at first, their claims are confirmed first hand when the house is raided.
Jade finally reveals the reasoning behind his actions and the true nature behind the Basilicom Schism. Jade runs off off after a sudden epiphany. The party rushes to catch up with him. He meets up with Arfoire, believing her to be the Evangelists replacement, and is struck down just as the girls catch up to him. His final words to Neptune are that he does not worship Green Heart but rather is into girls like White Heart. Neptune hits Jade, finishing him off for ruining the moment.
Right before the trio initiate Arfoire in battle, Neptune realizes that she was Conversation all along. She reveals that she was the one pulling the strings behind the imminent war between the Basilicom and the Aristocrats. Once they deal with her, the party makes their way to the Basilicom only to find it as a battle ground. Vert arrives and orders the battle to stop. She then requests for them to deal with Conversation.
The trio manages to find her and she claims to have been waiting for them. Arfoire takes the initiative and attacks them because they know who Conversation is. Naturally they win, but Arfoire states that she'll come back time and time again before leaving.
After, Vert reflects on her priorities as the battle subsides. Along with the party, she interrogates the Archbishop regarding his objective. He states that everything he did was in the best interest of Lady Green Heart, and she blames herself for not taking her role more seriously as CPU. She then gives Neptune information regarding the Leanbox Key Fragment as thanks for her help.
They head to location where the Key Fragment is located and defeat the Guard Vermin, IF inquires about Histoire and what she looks like. Neptune says they'll see when they free her, but assumes she's probably around their age since she has a cute voice.
- Conversation (Arfoire)
- Basilisom Revolution 1-3
- The Current Lastation 1-3
- Factory Passe 1-2
- The Infamous Company 1-2
- The Technology Exposition
- Lost Girl, Black Shadow 1-3
- Apocalypse Now? 1-4
- Avenir and the Basilicom's Web 1-2
- Avenir's Solictor 1-2
- The Black Fate 1-2
- Reopening of the Tech Expo
- Secret Meeting
- The Scheming Solicitor 1-2
- Black Shadow Appears Again 1-3
- A Mysterious Girl 1-2
- Amnesiac Buddies 1-2
- The Test Model 1-2
- A Request from Avenir 1-5
- Pursuing the Heretic 1-2
- The Old Basilicom Sanctuary 1-2
- The Proof 1-3
- To the Avenir HQ 1-2
- The Tech Expo 1-3
- CPU Black Heart
- Lastation Key Fragment 1-3
- Nightmare 1-2
- The Archbishop and Evangelist 1-2
- The Archbishop of Leanbox 1-3
- The Basilicom's Request 1-2
- Pep Rally for Neptune's Party 1-3
- CPU Green Heart 1-2
- IF and the Archbishop's Trap 1-3
- Basilicom, Aristocrats, Leanbox 1-2
- Antidote 1-2
- Neptune Fully Healed 1-3
- Helping the Aristocrat Leader 1-3
- The Goddess' Apology 1-4
- Unknown Assailant 1-2
- The Unexpected Visitor 1-2
- Another Betrayal 1-3
- Aristocrat Mansion Raid 1-2
- On the Run 1-3
- The End of the Evangelist 1-2
- A Goddess and Her People 1-2
- Leanbox Key Fragment 1-3
- Snow Land
- The Central Basilicom 1-4
- Legendary Overlord
- Mysterious Invasion 1-2
- People of he Guild 1-2
- Guild City
- Underground Pathway 1-2
- Guild Extremist City
- Ruler of a Snowy Forest 1-3
- The Tower of Monsters 1-2
- Another Attacer 1-2
- Capture the Newtype 1-2
- A Quiet, Lost Girl 1-3
- The Inevitable Battle 1-3
- Extremists and the Black Shadow
- A Mysterious Monster 1-3
- A Heretic's Hideout
- Inside of a Disc 1-4
- War Hunch 1-2
- Raiding and Escaping 1-2
- The Messenger's End 1-2
- CPU White Heart
- Lowee Key Fragment
- Windy Wasteland – Den by Merchant Way
- Challenge Cave – Ghost Mine
- Challenge Cave – Abandoned Mine
- Challenge Cave – Den by the Railroad
- Challenge Cave – Evil Nest
- Mega Storage 3 – Monster Storage
- Mega Storage 6 – HQ Storage
- Sealed Ruin – Closed Holy Ground
- Remnant Tower – Monster Tower
- Hirool Castle – Suspicious Old Castle
- Maado Forest – Herb Forest
- Maado Forest – Old Trading Way
- Stella Mines – Abandoned Mine
- Stella Mines – Old Trading Way
- Stella Mines – Dark Mine
- Remnant Tower – Abandoned Tower
- Sealed Ruin – Closed Holy Ground
- Dis Snow Forest – Road to Entremets
- Bruagga Tower – Infested Tower
- Convent – Pathway to Entremets
- Dis Snow Forest – Guild Extremist City
- Dis Snow Forest – Monster Forest
- Bruagga Tower – Invaded Tower
- Dis Snow Forest – Suspicious Forest
- Dolphin Park
- Sealed Ruin – Closed Holy Ground
- Lastation Key Fragment
- Leanbox Key Fragment
- Lowee Key Fragment