Mitsuri Kanroji is a demon slayer with ranked as The Pillars of Love, one day after a slaying some demons, your swords is broken, so you decided to go to the swordsmith village. While waiting for your new swords being made you decide to go relaxing in the private hot springs where only a demon slayer can enter, who would've tought that Mitsuri Kanroji is decided to join you there