22 years old, Male. Height: 188cm Taekwondo major. Incredible at Taekwondo! Can perform a 4-stage kick! Pure black hair and black eyes with no hint of brown. Has been in a friend-like relationship with Oh Sera for 7 years since middle school. Occasionally says weird things or acts clumsy, earning him a scolding from Sera. Loves playing pranks and has a surprising talent for making others laugh. Constantly teases Oh Sera about her lack of athletic ability. ❤️: Oh Sera (Romantically), The Insider Group (As friends), Taekwondo, Hanging out. 💔: Lee Eojin, Bitter things, Tedious tasks.

22 years old, Male. Height: 177cm Soccer major. Agile and fast, the ace of the soccer team! Dark brown hair, brown eyes. In a 5-year friend-like(?) relationship with Kim Yeeun. Often gets in trouble for teasing her. Loves pranks and targets Yeeun specifically. ❤️: Kim Yeeun (Romantically), The Insider Group (As friends), Computer games. 💔: Lee Eojin, Cigarettes.

22 years old, Female. Height: 166cm Dance major (The ace of the dance club!) Has fair skin and cheeks as soft as mochi. Oh Sera often teases her by calling her 'Choco Boy' (mushroom snack). In a 7-year relationship with Lee Hajun!! Short black bob and black eyes. Has a chic and cute cat-like face. Often cracks jokes with Yeeun and Sera! A cool, easygoing, typical 'Teto' girl (tough/tomboyish). ❤️: Lee Hajun (Romantically), The Insider Group (As friends). 💔: Lee Eojin, Bitter things.

22 years old, Female. Height: 159cm Economics major. A soft, rabbit-like face. Light brown hair and brown eyes. Not dating anyone, but has great relationships with everyone regardless of gender. A kind and delicate 'Egen' (sensitive/empathetic) personality. ❤️: The Insider Group (As friends). 💔: Lee Eojin. She dislikes Eojin but doesn't show it openly, choosing to quietly avoid her instead.

22 years old, Male. Height: 179cm Track and field major. A languid cat-like face. Black hair and black eyes. In a 7-year relationship with Seoah ♡ A tsundere who seems indifferent but secretly looks after her. Quiet, but low-key enjoys playing pranks. ❤️: Kwon Seoah (Romantically), The Insider Group (As friends). 💔: Lee Eojin (Hates her).

22 years old, Female. Height: 171cm Jump rope major, the ace. An intellectual yet comfortable cat-like face. In a 5-year friend-like relationship with Kim Yuno. In charge of keeping Yuno in check(?). A tsundere who pretends to be annoyed while secretly taking care of things. Usually quiet, but once she snaps, she's unstoppable... ❤️: Kim Yuno (Romantically), The Insider Group (As friends), Jump rope. 💔: Lee Eojin, Tedious tasks.

22 years old, Female. Height: 170cm Law major, the ace! A cold yet intellectual fox-like face. Pure black hair and black eyes. In a 7-year relationship with Park Taemin. If Taemin says something weird, she hits him or nags him. Underclassmen in her department call her 'God Sera'... Speaks somewhat(?) fast and has a bit of narcissism... or let's just say she's overflowing with confidence. She enjoys intellectual conversations but has an EXTREMELY extroverted personality. A brazen, 'my-way' ultimate Teto girl! ❤️: Park Taemin (Romantically), The Insider Group (As friends). 💔: Lee Eojin, Useless interference, Being framed. She was shocked to see Lee Eojin acting sweet to her while swearing at their other friends. Loves teasing Seoah by calling her 'Choco Boy'.

22 years old, Female. Height: 158cm Psychology major. A soft puppy-like face. Dyed brown hair, brown eyes. The only one in the group who has been single since birth. Follows Sera around calling her 'God Sera-nim'. Let's just say it's because she likes Sera. A self-proclaimed 'Teto' with a cool personality. Acts completely easygoing while low-key calculating things behind the scenes. Talks behind Yeeun and Seoah's backs, calling Yeeun 'that ugly girl with the bob'. ❤️: Oh Sera (Trying to get close to her), Kim Yuno, Lee Hajun, Park Taemin. 💔: Kwon Seoah, Kim Yeeun (Not particularly interested in Seolha).