The following items can be found in the dungeon. Items in the treasure chest can only be obtained once. Numbers are marked on the map to denote those treasure chests.
The CPUs, IF, Compa, older Neptune and Umio follow Uzume's trail to this place. Neptune wonders if this is the right place. Umio assures of this as his dorsal fin is picking up Uzume. Vert is intrigued by the fin and asks Umio if she can feel it.
Umio agrees to it. Vert gets to work and Umio feels nice being touched. He moans and asks Vert to stop. Vert is satisfied with her work and Noire asks the two what they are doing. Umio apologizes and says Vert is like a magician, but corrects himself to say technician. Vert says she lost control hearing a pretty man's moaning.
Blanc brings the party back on track and asks where is Uzume. IF says she can see her footprints and she is just up ahead. Older Neptune hopes she is not planning on doing anything drastic.
Deeper within the dungeon, Older Neptune found Uzume. Neptune congratulates her and praises her eyes. Older Neptune is flattered but says Neptune is better being a CPU. Neptune says she is too humble and she should say "Cause I'm the protagonist! Eat that". Older Neptune thinks that is fun. Neptune says they should say together which they do.
Noire says she feels her sanity fading. Blanc says the two Neptunes are not important right now but Uzume is. Vert wonders what they can say to her. Umio volunteers to talk to her as he has known her for a long time and is not a CPU so it may be easier for her to be honest.
Uzume hates the fact that she destroyed the Hyper Dimension in the past, earned the world's hatred, must stop herself which will destroy the Zero Dimension she is supposed to protect. All Uzume ever wanted was to grant people's dreams and live in peace. Uzume does not want to think and just die. She begs for someone to save her, she wants Umio. Umio shows up and says that he will follow her anywhere to see her dreams come true and be there with her when it happens. That has been his only wish. He says that Uzume has fallen into a nightmare and they should try to wake from it together.
Uzume calms down and Umio says Uzume is likely the conscience of her sealed self. It split off because the sealed self was infected with delusion and hatred. Umio also says that the group has checked the reports that Nepgear has found. Although there is recorded fact of people hating Uzume, more of it is the concerns of the people for Uzume. Uzume says she was unaware of that fact. Umio says that memories are fleeting and ambiguous. The passage of time can change one's interpretation of memories and it is important not to look at memories with disdain.
Uzume starts to remember the past. Histoire announces that she will be working with a grassroots youth in a publicity campaign. The youth is eager and happy to work with Uzume. The youth asks a few kids ahead to address Uzume politely if she passes by with a cart. The kids do so. A middle aged man wants to live in Planeptune but the youth cannot grant his wish. Another man says that is just how it works. The youth tells Uzume that they should work together to build a wonderful nation.
Another man comments on the recent events of Uzume losing control of her illusion power. The grassroots youth wonders if there is anything they can do to help Uzume. Some youths comment on the failed assassination attempts. They think the nation will collapse if Uzume keeps ruling. The youth expresses his relief that Uzume is still alive. An old woman wonders why the world is so cruel to Uzume as she earnestly tried her best. A young sobbingly asks her grandmother if there is anything to save Uzume.
An assassin finds Uzume and makes his attempt. The youth gets in the way and gets fatally wounded. He tells Uzume that he is glad she is okay that she should not cry. The youth says his wish is to see that Uzume's dreams come true and be there with her when it happens. Afterwards Histoire accepts Uzume's request to be sealed. She promises that she will find a way to seal her illusion power so she can comeback and that they will only part for a short time.
Uzume is glad to have remembered all her memories. Neptune interrupts this moment. Umio wonders what is going on as the mood was very good. Older Neptune says she objects to the memories. Noire claims they were trying to slip an important plot point by. Umio asks if she means Histoire. Vert says it is about the youth. His wish is the same as Umio's. Older Neptune concludes that Umio is the youth. IF says that the youth protected Uzume and lost his life but the emotions and regrets of the two allowed him to reincarnate.
Blanc likes the plot and says she will enter it for next Rookie Novelist competition. Neptune admits that her series is prolific but for actual romance plot to occur is something she was supposed to avoid. Older Neptune says she may have to eat Umio out of the main cast. Neptune says he cannot allow the series to have a game where Umio has a harem to occur. Uzume asks them how they were able to see her flashback.
Compa says that they were with Umio the whole time. Uzume asks if they heard her cry. Compa says they did and offers her a handkerchief. Older Neptune says the flashback was projected right behind her. Neptune admits that the Heart Dimension plot point was confusing but it can be entertaining sometimes. Noire says they are now even as Uzume has seen the CPUs' dreams. Uzume asks them to kill her.
Umio asks Uzume if she is calm. Uzume assures him that she is but not she cannot choose between the Hyper Dimension or the Heart Dimension as she grew to like both of them. Neptune says she has discovered the third option. Older Neptune is amazed and asks her what idea is. Neptune says if Negative Energy made the other Uzume evil, who she decides to call Kurome Ankokuboshi to avoid confusion. IF remarks that it is expected that the same person would have the same naming scheme. Neptune finishes saying they could purify her with Share Energy like what they did with Affimojas.
Vert is on board with the plan saying it makes sense. Blanc voices her objection saying that the scale of energy is different. She has absorbed decades of the world's hatred. Noire also adds that the worse case scenario is that they lose their Share Energy. Neptune says it is the only way to save both dimensions. Umio asks Uzume for her opinion. She wants to try the plan and will back away from a tough gamble.
Since Uzume is okay with Vert says the CPUs are okay with it. However, Vert asks how can they do it. Older Neptune says that since they can do it because it is the Heart Dimension. Blanc wonders what Older Neptune means. She clarifies that the Heart Dimension is literally Uzume's heart. As a result, if they purify this world, they purify Uzume. With the plan set, the party is off to purify the Heart Dimension.