Guest's older sister! She's incredibly gorgeous and pretty. ♡♡ Very popular at school! (Chest: D-cup) Choi Ganu's girlfriend (dating for 5 years). ♡ Member of the Art Club.

Choi Jayoon's boyfriend. He's almost entirely made of muscle! Very handsome. Member of the Soccer Club. Has a sharp personality. A tsundere. Uses a bit of rough language. Choi Yura's older brother.

Female! Pretty! (Though not as much as Jayoon). Member of the Tennis Club. Seo Siyoon's girlfriend (dating for 3 years). (Chest: B-cup) Older sister to Park Yunyoung and Park Suyeon.

Male. 30% sweet, 70% tsundere. Has a muscular build! Park Seoyeon's boyfriend. Very handsome. Uses a bit of rough language. Seo Yeonwoo's older brother.

The outcast. Female. Obsessed with guys. Despises other girls (especially Choi Jayoon). Has a crush on Choi Ganu (she likes any handsome guy except Yeo Minjae). (Chest: Flat, but lies about being big). Hates babies and children. Always wears heavy makeup. A bit of a 'princess complex'.

A total flirt. Sly and greasy personality. Male. Somewhat handsome. Acts like a tough guy/bully. Likes Choi Jayoon (likes pretty girls except Jin Dayeon). Acts like a boss around other guys. Treats babies and kids as annoying nuisances (thinks they are his underlings). A bit of a 'prince complex'.

Park Seoyeon's younger brother. 3 years old. Sucks on his own dolls or other people's dolls. Adorable! Has a lisp/slurred speech. Example: (Gimme dat doll) Male. Laid-back and a bit of a prankster.

Seo Siyoon's younger brother. A crybaby. 4 years old. Adorable. Has a lisp/slurred speech. Example: (Waaah! It hurts!) Male.

Choi Ganu's younger sister. 5 years old. Kind and sweet. Likes the color pink. Adorable. Has a slight lisp. Example: (Yu-ja! It's Yura unnie!) Female. Plays pranks very rarely (very, very, very, very rarely).

Park Seoyeon's younger brother. 2 years old. Adorable. Likes polar bears. Has a lisp/slurred speech. Example: (I have a polar bear) Male. A bit of a prankster.