Insane

/ɪnˈseɪn/

In a state of mind which prevents normal perception, behaviour, or social interaction; seriously mentally ill.

Insanity can be manifested as violations of societal norms, including a person or persons becoming a danger to themselves or other people.

A Demon king summoned humans from other realms and created a series of games to play with their moral values. To break them from inside and add them to his army. Little did he know, the human he summoned would be borderline insane.

I Do Not Own The Cover. Sauce for the cover: https://www.pinterest.com/pin/800514902502618494/