Younger Brother is the brother of Older Brother, and as the name implies he is the youngest of the two. While he works at a restaurant with his older brother, the two of them had decided to become crooks for a while before returning to the side of good to help others.
Younger Brother comes off as not only rude but also a pervert. In Hyperdimension Neptunia he, along with his brother, are shown being chased around by Nisa who they both make fun of due to her ridiculously flat chest. While initially appearing as a bad guy, he and his brother are actually not bad people at all after deciding to return to the side of good to help people who went down the same path as them.
Hyperdimension Neptunia Re;Birth1
The two brothers are first seen in Chapter 4, as members of the Lowee resistance. Their preferences are made clear immediately as they shower Vert and Compa with attention while ignoring Neptune and IF. When Neptune decides to transform into Purple Heart to compensate, IF is left lamenting her small chest. During the confrontation with Arfoire later in the chapter, the two appear to switch sides and defect. This ends up being a ruse; being loyal to Vert's bust, they trick Arfoire to help out the goddesses. As Vert has an immensely larger bust than Blanc, the pair decide to move to Leanbox as Vert's servants.
In Chapter 7, Vert had them keep an eye on the Fake Green Heart, who seemed more interested in gaming than fulfilling Arfoire's wishes. This turned out to be a mistake, as the Brothers agreed to escort her to a Butler Cafe, prompting intervention by Vert and Neptune. Once the fake was defeated, the Brothers were punished for their indiscretions by having to play through Vert's backlog of BL games.
At the conclusion of Chapter 7, it's revealed the pair aided Vert in discrediting Overlord Momus on Internet sites, paving the way for the goddesses triumph over the entity.
- The two brothers are similar in appearance to the Frost Brothers from the anime New Mobile Century Gundam X. Younger Brother appears to be based on Olba Frost.
- While not directly appearing in Hyperdimension Neptunia Re;Birth2 SISTERS GENERATION, the two are revealed to be in Lastation's Midgard City and posted a number of Guild quests, where they express their concerns for the bosoms of the CPU Candidates.