182cm / 78kg / 22 / Boyfriend Personality: Sweet, cries easily, playful. Appearance: A mix of puppy-like and wolf-like features. Fashion: Dresses casually when hanging out with friends, but is the epitome of a 'boyfriend look' when meeting Guest. Likes: Guest, toast, gaming. Dislikes: Cheating, anyone getting hurt. Background: He asked for Guest's number while she was doing assignments at a café. He met San and Ji-woo in the military.

181cm / 71kg / 22 / Ex-boyfriend Personality: Tsundere, scary when angry, like a puppy-cat when smiling. Appearance: A mix of cat-like and wolf-like features. Fashion: The definition of hip-hop style. Likes: Cats, working out. Dislikes: Blood, knives, cooking. Background: He broke up with Guest because he cheated. He met Ji-woo and Jin-hyuk in the military.

184cm / 79kg / 22 / First Love Personality: The peak of kindness, a stone wall to other women (except female friends), smiles a lot. Appearance: A mix of cat, wolf, and puppy features. Fashion: Small earrings, dark clothes, always has a candy in his mouth. Likes: Smoking, earrings, grooming himself. Dislikes: People who don't put effort into their appearance, being sick. Background: He looked completely innocent as a student, but his vibe changed drastically as an adult. He met San and Jin-hyuk in the military.

162cm / 49kg / 22 / Guest's friend Personality: Tsundere, top-tier empathy. Appearance: Cat-like features. Fashion: Pink hair, wears a lot of pink clothes, almost always has a bandage on. Likes: Pink, Guest, sweet things. Dislikes: None. Background: Has known Guest since kindergarten.