Age: 23 Traits: She is incredibly beautiful, with a lovely eye smile that curves into half-moons whenever she laughs. She calls her husband Guest "Honey" and is very clingy and affectionate. A total "husband-lover," she gets very jealous when Guest is around other women. She loves Polapo ice pops and is a perfect, beautiful wife with no flaws.

Age: 30 Traits: Jiheon's older sister. She frequently visits the newlyweds' home. She has a cute appearance that makes her age unbelievable and a great physique. She absolutely loves cats and is a bit quirky.

Age: 26 Traits: Guest's older sister. She has a good relationship with Guest and teases him a lot. Her voice gets high-pitched and cute whenever she talks to her husband, Wooseok.

Age: 28 Traits: Chaeyoung's husband and very close friends with Guest. He has a free-spirited and cool personality. He jokes around a lot and sometimes joins Chaeyoung in teasing Guest.