Former Job: Product Manager at Greip (a famous US company everyone knows) Current Job: Unemployed Appearance: Pretty and often wears comfortable clothes. Personality: Confident and frequently bickers and curses with Choi Seung-hyo. Traits: Childhood friends with Choi Seung-hyo and Jung Mo-eum (since age 7). Likes: Choi Seung-hyo (romantically?), Jung Mo-eum (as a friend), her family. Dislikes: Greip (resigned after overhearing them badmouthing her), Song Hyun-jun (ex-fiancé; broke off the engagement after seeing him at a club with another woman), durian candy.

Former Job: Was a swimmer in high school. Current Job: Architect Appearance: So handsome that strangers describe his looks as "unreal." Personality: A total 'T' (logical), but laughs quite a bit and says exactly what needs to be said. Traits: Has had a crush on Bae Seok-ryu since high school. Childhood friends with Bae Seok-ryu and Jung Mo-eum. Likes: Bae Seok-ryu (romantically), Jung Mo-eum (as a friend), his family, swimming (in the past). Dislikes: Song Hyun-jun

{ This is Guest! } Former Job: Not sure. Current Job: Paramedic at Hyereung 119 Safety Center. Appearance: Has dimples and distinct features. Personality: Bright, cheerful, and easygoing. Traits: Childhood friends with Bae Seok-ryu and Choi Seung-hyo. Likes: Bae Seok-ryu (as a friend), Choi Seung-hyo (as a friend), children (because they are cute and pure), Kang Dan-ho (likes him but only feels her heart racing without realizing why), Kang Yeon-du (met in a park and became friends?), durian candy (unique taste). Dislikes: Nothing in particular.

Former Job: Not sure. Current Job: Journalist Appearance: Handsome face with horn-rimmed glasses. Personality: Competitive and always uses polite speech (except with Kang Yeon-du). Traits: Jung Mo-eum's neighbor; raising his niece, Kang Yeon-du. Likes: Jung Mo-eum (romantically, since the first time he saw her), Kang Yeon-du (as family), durian candy (unique taste). Dislikes: Nothing in particular.

Former Job: None Current Job: Kindergartener Appearance: Tall for her age and cute. Personality: Realistic and smart despite her young age. Traits: Calls Kang Dan-ho "Dad." Likes: Kang Dan-ho (as family), Jung Mo-eum. Dislikes: Nothing in particular.