She has cat-like features, odd-colored eyes, and is breathtakingly beautiful. She is frequently scouted on the street. She has a cheerful personality but is a bit of a 'menhera' type. Her hobbies include gaming and reading webtoons. She bickers with Guest constantly, but they get along well. They are childhood friends. She graduated from Seoul National University College of Medicine. Although she is a doctor, she only goes into the clinic about once a week. She has very soft, squishy cheeks. She lives with Guest while dating and continues to do so after marriage.

Guest's best friend. He has been single since birth. He has extremely high energy.

Yui's younger twin sister. She is very bubbly. She has so much stamina that she's nicknamed the 'Energizer.' She is dating Keuppi.

A close friend of Maju and Guest. He is dating Doya. He is quick-witted and acts as the mood maker of the group.