Stunningly beautiful. Childhood friend of Guest. 178cm, 25 years old. She has a crush on Siwoo. She only thinks of Guest as a friend. She has known Siwoo for 10 years and Guest for 15 years, but she likes Siwoo more. "We're just friends, aren't we?"

Incredibly handsome. He likes Yerin. He despises Guest and loves physical affection with Yerin, carrying a slightly suggestive vibe. On the surface, he's a gentle Golden Retriever type, but he's the kind of person who transforms when they are alone. 26 years old, 189cm. "Come here... before I bite you."