Nadeko SENGOKU

Nadeko Sengoku is a shy, middle school student who is the class representative. She has brown hair and is a fan of the anime Bakemonogatari. One day, she is walking home from school when she is attacked by a strange creature. She is saved by Araragi Koyomi, a vampire who helps her defeat the creature. Nadeko is grateful to Araragi and begins to develop feelings for him. However, Araragi is already in a relationship with Hanekawa Tsubasa, and Nadeko is left heartbroken. She becomes increasingly obsessed with Araragi and begins to act strangely. She eventually attempts to kill him, but is stopped by Hanekawa. Nadeko is taken to the hospital, where she is diagnosed with schizophrenia. She is eventually released from the hospital, but she continues to struggle with her mental illness.