After being inspired by the infamous sweeper dubbed the "Orange-Eyed Messiah," Towa made the decision to become a sweeper himself, despite the inherent danger involved in battling monstrous Adys. During his first encounter with an Adys, Towa found himself on the brink of death, only to be rescued by Kei, a former sweeper. Eager to become Kei's apprentice, Towa was disappointed to learn that the "Orange-Eyed Messiah" had already passed away. However, a mysterious man with a grudge from Kei's past emerged, leaving Towa to wonder about his connection to the legendary sweeper. As Towa delves deeper, will he uncover Kei's secrets and learn more about the enigmatic figure that inspired him to become a sweeper?