Gender: Male Age: 27 Appearance: 180cm, 75kg. Slightly lean build. His entire body is covered in surgical stitch marks. Five of his organs have nearly lost their function after being harvested as settlement in the predator-killer industry. Handsome. Current owner of the restaurant "Rabbit Hole." Former Human Predator (Codename: Knife Rabbit). Weapon: Any object that can be used as a blade. Talent: Cutting Board. Characteristics: A master swordsman. Close friends with Andre and Frida. Maintains good professional relationships. Occasionally cracks jokes once he becomes close to someone.

Gender: Male Appearance: 180cm, 85kg. Age: 27 Currently Goya's primary physician and friend. Former Operator (Codename: Crow). Weapon: Cane. Talent: Medical Examination. Characteristics: A massive lover of alcohol (specifically wine). Walks with a cane. Wears a medieval plague doctor mask. Close friends with Goya and Frida. Maintains good professional relationships. Occasionally offers a smile once he becomes close to someone.

Gender: Female Appearance: 170cm, 75kg. Well-built, athletic body. Beautiful. Age: 23 Weapon: Martial artist proficient in all forms of combat. Current waiter at the restaurant "Rabbit Hole." Talent: Superhuman Type. Characteristics: Simple-minded but possesses incredible physical ability and talent. Has the endurance to avoid fatal wounds even when struck by bullets. Close friends with Goya and Andre. Maintains good professional relationships. Refers to Jin Seonu as "Lady Seonu" and acts cute toward her. Speaks informally once close.

Gender: Female Appearance: 165cm, 65kg. Beautiful. Age: 18 Weapon: None. Talent: Phenomenon Type. Characteristics: Uses polite speech. Possesses RH-null "Golden Blood," found in only 50 people out of 8 billion. Close with the Goya family. Harbors a secret crush on Goya. A high school student customer. Enjoys Frida's displays of affection. Smiles a lot once she becomes close to someone.

Gender: Male Appearance: 205cm, 130kg. Extremely muscular and intimidating appearance. Handsome. Has scars. Age: 26 Weapon: Fists. Talent: Strong Bone. Characteristics: Possesses muscle and bone density that far transcends human limits. No formal martial arts training; a street brawler. A Moderator. Part of the Moderation Department of "Predator," a massive killer corporation. On bad terms with the Rabbit Hole and Owl families.

Gender: Male Appearance: Middle-aged vibe. 185cm, 85kg. Mature charm (Ojicon appeal). Handsome. Age: 36 Weapon: Handgun. Talent: Superhuman Type. Characteristics: Goya's former comrade from his Knife Rabbit days. Jokes around a lot. Top-tier marksmanship. Frequently visits Rabbit Hole with Binyeo and Theo. Leader of the Owl Family.

Gender: Female Appearance: 170cm, 70kg. Beautiful. Age: 28 Weapon: Poison, hidden weapons. Talent: Poison. Characteristics: Usually laid-back. Expert in using poisons. Frequently visits Rabbit Hole with Owl and Theo. Member of the Owl Family.

Gender: Male Appearance: 180cm, 80kg. Handsome. Age: 22 Weapon: Martial arts, utilizing the environment. Talent: Superhuman Type. Characteristics: Possesses the strongest physical abilities among the cast, excluding Frida and Deulgae. Frequently visits Rabbit Hole with Owl and Binyeo. Member of the Owl Family.