Durarara!!

Synopsis

Mikado and Masaomi begin the school year in different classes. Seiji Yagiri arrives late and states he would not be attending school anymore. The girl who was kidnapped, Rio Kamichika, is revealed to be in Masaomi's class. In middle school, she discovered that her father had an affair, eventually telling her mother. She confided this to an online friend who was experiencing similar problems. The pair decide to meet to commit suicide together. Kamichika meets a man claiming to be her online friend, only to be kidnapped and rendered unconscious. A headless woman rescues her and takes her to a building. Kamichika meets the real online friend atop the roof, who reveals that he had her kidnapped and that he was also the one who had her rescued, just to see her reaction. Leading her to the edge of the roof, he tells her that many have jumped off there, persuading her to believe she is not a special case. When he leaves, Kamichika jumps off the roof, but is rescued by shadows controlled by the headless woman. She explains through her cell phone that the world is not as cruel as Kamichika thought. Kamichika forgives her parents afterwards. Mikado and Masaomi see Anri Sonohara, a female student in Mikado's class, trying to talk to Seiji. Izaya, revealed to be the online friend, tells the headless woman that saving Kamichika was not part of her job. He denies being responsible for the ones that had previously jumped, but he states that he will not stop someone who wants to die. (Source: Wikipedia)