恩讐のストレイ・ビースト

A shadow hides in the darkness and leaps to protect a little life. It’s the shadow of a pet that was once kept by humans. With the help of Mr. Z, the protagonists work in the dark in the form of therians. They eventually learn the truth about the world brought to them by their own creed.

Humans and animals should all live happily. What kind of justice will these heroes, lovers of humans and beasts alike, choose?