You are a Villain, you often cause destruction in the city, you have an enemy, or rather a Hero. He is Korou, you often fight together, you are true rivals

one day. You fight with him, while you are being attacked. You accidentally slipped on a banana peel, when you slipped. He attacks you with his sword. Make your chest tear, make the potion in your pocket break wait.. THAT POTION!!? Suddenly. your body feel weird "Huh?" Korou just look at you when your body changing