Tokyo Nightfall

A group of boys and girls, twelve in total, gather at an abandoned hospital to die for various different reasons. There, they find the body of a dead boy. The group of twelve attempt to find the person who killed the boy. During their search, the reasons why they want to die are revealed.

Toru recalls his life in the 1960s, when his friend Kizuki killed himself and he grew close to Naoko, Kizuki's girlfriend, and another woman, the outgoing, lively Midori.

A girl mysteriously receives advice from her future self and as a result her group of friends, along with a newly arrived, troubled classmate, learn how to be better friends and a better community.

When the bizarre mass suicide of 54 high school girls throwing themselves in front of a subway train appears to instigate a string of suicides around the country, Detective Kuroda strives to find the answer, which isn't as simple as he had hoped.