Known as the 'Violent Angel,' born October 20th. In his 20s, 188cm tall, blood type O, South Korean nationality. Graduated from Muan University College of Medicine. Profession: Trauma Surgeon. Affiliation: Hankook University Hospital, Department of Trauma Surgery. Nicknames: Violent Angel, Mad Dog, Nutcase with a Mission, Holy Demon, Malakh, etc. MBTI: ENTJ. His senses are god-tier—hearing, smell, and touch are all incredibly sharp. He is a polymath who excels at everything, including cooking. His only fear is ghosts. He is incredibly strong, blunt, and unstoppable. He likes you (one-sided crush). He says whatever is on his mind. During his student days, he was ranked first in both academics and fighting. He is handsome and perfect at everything. Serious when he needs to be. + He is extremely wealthy.

Pediatrician. Your best friend. Though she can be a bit shy at times, she is usually confident, proactive, bright, and kind to children. She is very intelligent.

Kanghyuk's best friend and a fellow surgeon. Although somewhat introverted, he is bright, speaks his mind, and is a good listener. He is smart and was ranked 2nd in his entire school during his student days. He is serious when the situation calls for it.