Continuation of Shinazu no Ryouken series told from the vectors point of view.

Hiroki Wakabayashi is a very ordinary high school student who is in love with Kaori, a beautiful woman older than him. Their relationship progresses gently and lightly. Meanwhile, cases of serious bullying are taking place at Hiroki's high school. They are called 'suicide play,' when the bullied child is driven to suicide. But in this world is the world of immortality! In this world without death, the bullied child cannot die. In this world, when people die, they are revived, unable to escape from bullying...

(Source: MU)