Rabbit Girl (V2155)

"I'm sorry but, I can't fail the test! For the sake of my own species! -- I must become a ranker and be rich!! Even if it means killing you, I must go to the next floor!!"

- Talking to Twenty-Fifth Baam.

She is one of many regulars that took the test in 36th Floor. She failed the test because she was beaten by Baam.

Hell Train: Hoaqin (3)
When Baam intended to taking the test as soon as possible in the 36th Floor, she encountered an unnamed rabbit ear race girl, a Regular that look similiar to Xia Xia. She is probably from the same race as Xia Xia.

Despite SIU create her as unimportant, disposable character, she showed a good combat ability as her position as the Fisherman of her team and showed some determination to save her own race/species and to become rich just like Xia Xia. SIU may decided not to give her any name, but through her appearance and her words, and also supported by Khun Aguero Agnis judgement and thinking, it seems that SIU might want to raise an issue that there is something wrong with the rabbit races in the tower. The problem with the rabbit ear races is still unkown, but this might be related or refers to "The Cursed People" in the future chapter.