The sudden visit of Tenakawa Maihime, ranked number one on the assassination target list in Kanagawa. It's a perfect opportunity to be alone, yet Shinomiya Akira is flustered. Will he be able to keep his room, filled with his Maihime collection gathered through stalking, a secret until the end? Moreover, as he becomes one of the Four Heavenly Kings, it turns into a "Kanagawa tradition, surprise event!" This time, he finds himself being stalked by Maihime and the members of the Four Heavenly Kings instead?!