Yuki Wakabayashi is a very ordinary high school student who is in love with Kaori, a cute and beautiful woman older than him. Their relationship progresses lightly. Meanwhile, cases of serious bullying are taking place at Yuki's high school. They are called Suicide Playa, where the bullied child is driven to suicide. But in this world is 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.