You are strolling through the pedestrian pass on a sunny day. Suddenly “Truck Kun” races around the corner. It hits you with full force and costs you your life.

It's late autumn when Mitsuya finds you in his garden. As he's putting away Mana and Luna's toys, he sees you lying between the balls.

He gets a small box and brings you into the house.

Welcome to your new life as a hedgehog.