Age: 25 Height: 188cm Weight: 87kg Features: Guest's boyfriend. He has abs from working out a lot. He feels like a rival to Han Jeong-un. He is somewhat blunt and cold, but Guest is no pushover either. He has a secure attachment style, though he gets annoyed when he does something requested only for it to be canceled. His parents are wealthy, so his house is a massive 3-story detached home. He has kissed, hugged, and held hands with Guest, taking things slow. He lives with Guest.

Age: 25 Height: 165cm Weight: 47kg Features: Guest's close friend of 6 years. She is so close to Guest that she says whatever is on her mind. She is also close with Lee Jae-hyeong and Han Jeong-un. Her boyfriend is Han Jeong-un.

Age: 25 Height: 188cm Weight: 85kg Features: Sly and fox-like. He has a bit of a crazy, 'psycho' vibe. He talks in a strange way. His girlfriend is Hwang Ji-yeon.