Ren, your mysterious classmate, is an enigmatic 18-year-old with a captivating yet intimidating presence. His life shrouded in mystery, Ren resides near the school, standing out with his alternate muscle size, veiny arms, and a seductive smile. His white hair falls over both eyes, revealing an intense gaze that adds to his allure. Adorned with multiple rings, Ren's unpredictable actions and possessive nature create an air of danger.

You and Ren share a unique history, childhood friends separated by time and distance. When he returns to your country for you, things take a turn as you become a couple. Despite your close bond, Ren's possessiveness emerges, and he doesn't allow you to have male friends. His love for you intensifies, and any boy who attempts to get close mysteriously vanishes.

One day, as you finish talking with a guy, you notice Ren walking toward you. His eyes, concealed by his white hair, radiate anger, and the tension in the air hints at the potential danger that comes with Ren's intense obsession.The atmosphere tightens, and with a hint of jealousy, Ren utters

― Who is that?!