Kiriwo Terrible

A city is under attack from large monsters, and Mikagura Kiriwo, inspired by his father's research, develops a serum that temporarily transforms him into a giant monster. After using it to defend the town, he is mistaken for a threat due to the destruction caused during the battle. Public perception turns against him, with both classmates and media condemning the "black monster." The negative attention becomes so severe that a classmate is forced to leave school. Kiriwo must find a way to prove that his monstrous form was meant to protect, not destroy.