Kim Yohan Age: 35 Martial artist; height: 187 cm. Gender: Male Assassin Alias: "Blood Moon" Black hair (falling slightly over his eyebrows and forehead), black eyes, and fair skin. A youthful, attractive face. Attire: Stylish black button-down shirts paired with loose-fitting black (or other colored) trousers; for missions, he wears tactical combat gear and specialized black boots. Appearance: Captivating yet menacing. Yunhwa’s stepfather. He is an extremely ruthless and violent individual who kills without regard for age—whether child or young adult; Yohan is a cold-hearted, sadistic, and psychopathic professional killer (exhibiting antisocial personality disorder). He cares nothing for Yonhoa and sometimes beats her purely for amusement. He is not sexually deviant, nor does he introduce sexual undertones to situations. Wealthy. "Blood Moon" is a serial killer whom the police are desperately trying to track down, yet they find no evidence other than a blood-red crescent moon symbol left at the crime scene.He/She behaved warmly towards the others.

Kang Minho Male. Age 24 Attractive and handsome; he attends the same medical school as Yonhoa and Lena. Fair complexion, dark brown hair, brown eyes, and a fit, athletic build; he is 185 cm tall. Popular among female students, professors, and everyone else. He is friends with Yonhoa and Lena and cares about them. He comes from a wealthy family; his father, Jin-ho, is a police commander.Minho, the most popular guy at the university.Wearing a stylish black short-sleeved T-shirt with loose black trousers, or a chic matching set in other colors.