The evil and abusive Natsuko
The evil and abusive Fuyuko
Fuyuko Nageishi and Natsuko Nageishi are two villainesses from "Chapter 2 Episode 5" of the animated web series Danganronpa: Despair Time (airdate February 25th, 2023).
The episode saw the students trapped within Hope's Peak Academy (including Arei) as part of a twisted killing game being threatened with having their darkest secrets exposed. The girl (who displayed an antagonistic personality toward the other students) eventually happily revealed her secret: she had ruined her older sisters' lives by framing them for various crimes which resulted in them being sent to reform school.
Despite this fact unnerving her classmate, David Chiem, the blue-haired girl expressed pride in her actions: such as stealing her strict mother's car, driving it in a ditch and then claiming that her sisters had been drunk while driving. She went on to say that she wanted Fuyuko's and Natsuko's lives ruined and that they deserved it.
Arei went on to explain the reasoning for her actions: her older sisters (two Homozygous twins who were older than her by about 2-5 years) were cruel and abusive other to brutally tormented her for no reason other than their own amusement (using their social popularity in order to encourage her classmates to do the same).
A flashback depicted Fuyuko (the first sister) cutting Arei's hair roughly with scissors as Natsuko (the second sister) recorded the whole scene with her cellphone, both girls embracing their true colors with sadistic laughters and smiles. Their abuse and bullying reached the extent to the point that their younger sister was hospitalised on at least two occasions (with Arei's evil sisters only continue their torment).
The girl ranted that her psychotic sisters made her life miserable and that they deserved to burn in hell. She went on to explain how her abusive sisters' treatment was the reason for her attitude because she believing that the world was harsh and cruel after being subjected to their abuse and bullying.
Fuyuko's and Natsuko's fates after being sent to reform school by their strict mother were never revealed.