Kentaro's mundane high school existence in Kenko was turned on its head when Sigma kingdom launched a sudden attack. Unbeknownst to him, Kentaro possessed a secret that the Sigma soldiers were after. They plotted to assassinate him at Giria Academy, where he was a student. But fortunately, he and his classmates were rescued by the distinguished Sanjuki trio: Tsubasa Sho Tenkuin, Shingo Go Daireiji, and Kyonosukezaemon Dan Kuronokuzu, renowned for their exceptional talents. Kentaro learnt that he was the exclusive successor to Kenko's throne and his life was no longer simple or ordinary.
