In Tatsumi Town, a series of mysterious vanishings puzzles the residents. Kiriya experiences a vision of a captivating girl with distinctive pointed ears, setting off a chain of events. The discovery of a book detailing an alternate realm intertwines with Mao's quest to reunite with her missing friend, Zero, leading her unexpectedly to encounter Souma and Kureha. In a twist of fate, Mao inadvertently transports them to her world. Now, Souma and Kureha must navigate this unfamiliar realm and seek a way home. However, dark forces lurk in the shadows, complicating their journey back and revealing unforeseen challenges along the way.