A modest country Dojo master is called by his legendary student to be special instructor for the Knights' order. This starts his reluctant journey, marked by choreographed duels, to win over his and others' doubts.

Middle-aged businessman Ryoma is reincarnated in a magical world by three gods. He's a child again, and he spends his days with his tamed slimes.

A chronic gamer abysmally inept in academics and sports finally meets his match at his usual shady arcade -- and it’s his rich classmate, Akira.