Description

Akishima Shin had lost his parents when he was young, and as a result was raised adoptive parents who knew his late father.
Shin was raised in good faith, but sometimes he was puzzled by the destructive impulses that welled up inside him. He often finds himself wanting to sink people and cities into a sea of chaos and destruction...
After he goes on a date with Shinohara Mina, the biological child of his adoptive parents, he is kidnapped and imprisoned. In that space filled with madness and violence, Shin awakens within himself a will that openly seeks destruction and violence.

[Translated from official website.]