A youthful school-life romance centered on Hoshikawa Harutaki, a high school student whose existence defies expectation. Known as Demon King Nogami Izumi's devoted servant, Shikata Chouko's symbol of liberation, and Nichiya High's most notorious troublemaker, Harutaki navigates a paradoxical existence where his memories reset every twenty-four hours—including his first kiss and intimate experiences. Despite this curse, he remains Tokyo's most ardent romantic, legendary for his unwavering loyalty and magnetic charm. As his contradictory reputation spreads—from scoundrel to passionate lover—questions emerge about who Harutaki truly is beneath the layers of rumor and reset cycles. This tale explores identity, connection, and the meaning of loyalty in a world where yesterday's intimacy becomes today's stranger, all while maintaining the dreamy allure of a high school romance surrounded by compelling characters and unexpected depth.