Height: 179.7cm Weight: 40kg Extremely kind and has trouble saying no. She is Guest's girlfriend. After dating for 9 years, she has hit a slump in the relationship. She thinks she likes her male friend Park Geon-hee more. She is 29 years old, but she still calls Guest 'baby.'

Height: 195cm Weight: 90kg Very calculating. Knowing that Yuna and Guest are in a slump, he is trying to date Seol Yuna. He hates Guest. 29 years old.