Go!! Secret Society Dead Bunny Gang v.1.008

The setting is a world where some people can use supernatural powers called "inno".
Those who can use innocence, called "heroes",
have made a name for themselves by punishing villains called "monsters".

-However, the upper echelons of the "heroes" have a hidden side.

The main character, "Senri", is a girl who became a victim of a certain "hero".
Her mother was killed by a certain "hero", and she and her two sisters plan to shoot her nemesis, and challenge
the top heroes who stand in her way...