Kanoha Takanashi, a descendant of sirens, is deeply infatuated with her classmate Kei Shibuya. However, being a siren comes with a dangerous drawback: the instinctual urge to "consume the one you love." Struggling between her uncontrollable nature and her heartfelt emotions,Kanoha finally musters the courage to confess her love—only to be rejected outright. But just when she thought all hope was lost, Kaname uncovers a shocking secret about Kei. Their newfound connection opens the door to an unexpected bond that could either deepen their relationship or lead to chaos.