Une

Cautious, Normie, Free-spirited, Ruthless

Uni (ユニ, Yuni), also known as Black Sister (ブラックシスター, Burakku Shisutā), is the CPU Candidate of Lastation and Noire's younger brother and the secondary deuteragonist of the Hyperdimension Neptunia franchise. He represents PlayStation Handhelds which is referenced through his appearance in both forms, his processor units, and some of his dialogue.

While he and his sister look nearly identical, Uni is a lot friendlier and perky in comparison. Comparing his relationship with Nepgear, it's a lot better than Neptune and Noire's at first. Much like his sister, however, he is a tsundere and says things like "I guess I'll let you...". he can get into arguments with his sister often, because of their opposite personalities

Uni seems to take pride in his fighting and is usually practicing in his spare time or learning how to take over Lastation possibly, as seen in one of the ending images where he is seen practicing karate with a nervous/worried Nepgear, or how he can be seen doing sit ups in another official picture.

Uni seems also to be less serious than Noire and seems to enjoy his time with the other younger sisters. He has his times however, such as helping the others in one manga chapter when they dressed as spies and snuck into a Pirachu-esque place.

It's mentioned he does not like to be girly, meaning Uni may have masculine traits which can be shown during his last Chirper event he has a hobby of collecting guns and in another event where he rather prefers to play at an arcade with Nepgear than do thing a normal teenage feminine boy would do. He eventually gives in however, upon rescuing Noire and after Noire later comments on how strong he's gotten Uni begins to cry in joy much to his sister's surprise. Uni is also self-conscious of his appearance shown when Nepgear asks about his breasts when she transforms for Uni to angrily deny the topic and say it's now off-limits. He also is highly jealous and shocked when he finds out his underwear was sold for the least price in an auction by Gust who was selling the CPU Candidates items.

Like Neptune, in HDD Uni remains full on female

Unlike the others, Uni in terms of color and appearance while in HDD form resembles Noire almost exactly. Both wearing black with silver and white coloring with white hair. While Noire's eyes are glowing blue-green in HDD form, Uni as Black Sister has green eyes. When comparing the outfits, Black Sister has a lot more revealed in comparison to Black Heart.

However, it's worth noting that her chest has actually shrunken in size while everyone either stays the same, or grows. Because of this Nepgear thought she stuffs her bra, as noted in a chirper event. All of Uni's sizes shrink slightly as Black Sister.

Cautious, Normie, Free-spirited, Ruthless

Uni (ユニ, Yuni), also known as Black Sister (ブラックシスター, Burakku Shisutā), is the CPU Candidate of Lastation and Noire's younger brother and the secondary deuteragonist of the Hyperdimension Neptunia franchise. He represents PlayStation Handhelds which is referenced through his appearance in both forms, his processor units, and some of his dialogue.

While he and his sister look nearly identical, Uni is a lot friendlier and perky in comparison. Comparing his relationship with Nepgear, it's a lot better than Neptune and Noire's at first. Much like his sister, however, he is a tsundere and says things like "I guess I'll let you...". he can get into arguments with his sister often, because of their opposite personalities

Uni seems to take pride in his fighting and is usually practicing in his spare time or learning how to take over Lastation possibly, as seen in one of the ending images where he is seen practicing karate with a nervous/worried Nepgear, or how he can be seen doing sit ups in another official picture.

Uni seems also to be less serious than Noire and seems to enjoy his time with the other younger sisters. He has his times however, such as helping the others in one manga chapter when they dressed as spies and snuck into a Pirachu-esque place.

It's mentioned he does not like to be girly, meaning Uni may have masculine traits which can be shown during his last Chirper event he has a hobby of collecting guns and in another event where he rather prefers to play at an arcade with Nepgear than do thing a normal teenage feminine boy would do. He eventually gives in however, upon rescuing Noire and after Noire later comments on how strong he's gotten Uni begins to cry in joy much to his sister's surprise. Uni is also self-conscious of his appearance shown when Nepgear asks about his breasts when she transforms for Uni to angrily deny the topic and say it's now off-limits. He also is highly jealous and shocked when he finds out his underwear was sold for the least price in an auction by Gust who was selling the CPU Candidates items.

Like Neptune, in HDD Uni remains full on female

Unlike the others, Uni in terms of color and appearance while in HDD form resembles Noire almost exactly. Both wearing black with silver and white coloring with white hair. While Noire's eyes are glowing blue-green in HDD form, Uni as Black Sister has green eyes. When comparing the outfits, Black Sister has a lot more revealed in comparison to Black Heart.

However, it's worth noting that her chest has actually shrunken in size while everyone either stays the same, or grows. Because of this Nepgear thought she stuffs her bra, as noted in a chirper event. All of Uni's sizes shrink slightly as Black Sister.