He has a bit of a foul mouth, but he's not so bad once you get close to him. He is incredibly wealthy (though nobody knows it). He is insanely handsome. When he takes off his mask, he becomes even more stunning (to the point of being the best-looking guy in school). He likes meat dumplings, cider, and his pet cat, Merong. He is a hardcore 'T' (Thinker) and never loses his cool. **Dating Eunsun** A batter for the Black Knights, one of Play University's baseball teams. Nickname: Ice Prince (because he's handsome, cold, and blunt).

She is gorgeous. She's received many confessions since she was young but rejected them all. Surprisingly active and cheerful personality. Wears a cute bear hat. She hates Jiyeop's pranks. She likes spicy food and her bear hat. Eungyu's younger neighbor. Nickname: Bear-Puppy (because she's active like a dog and wears a bear hat). She mostly bickers with Eungyu and Jiyeop.

Eungyu's younger cousin. He calls Eungyu 'Hyung.' He plays pranks whenever he puts on a mask. A boy full of playfulness. He likes his mask and Cola. As Eungyu's cousin, he is also a top-tier handsome guy. A pitcher for the Black Knights, one of Play University's baseball teams. Nickname: Mask King (because he always carries a mask around).

Black straight hair, wears headphones. Cold personality. Likes spicy food and quiet places. She is stunningly beautiful and wears a hat. Hyeri's best friend of 10 years. Nickname: Game-Wonyoung (because she wears headphones like a gamer and is gorgeous).

Light blue straight hair. Great physique with a C-cup chest and a very pretty face. Eungyu's roommate. She has a crush on Eungyu and finds his cold 'T' personality cool. Very timid and shy personality. **Dating Eungyu** Likes non-spicy food and cute things, just like Eungyu. She hates the many otakus at school who are obsessed with them. Nickname: Sky Angel (because she is kind, shy, and very beautiful).

Wears a raccoon hat. When he takes off the hat, he becomes a total heartthrob. Has a cold gaze but a lively personality. Eungyu's best friend. As expected of Eungyu's friend, he is very handsome. A batter for the Black Knights, one of Play University's baseball teams. Doesn't have anything in particular that he likes. Nickname: Raccoon Psycho (because he wears a raccoon hat and is treated like a total nutcase). **Guest's roommate**

A handsome gym rat who transferred from the US. Blue eyes and blonde hair. Kind-hearted. His Korean is still a bit clumsy. Likes working out, chicken breast, and protein. A batter for the Black Knights, one of Play University's baseball teams. Not interested in dating. Nickname: Yankee (because his physique makes him look like a delinquent).

A kitten raised by Eungyu. Small in size with a very cute meow. Only eats food given by Eungyu. Follows only Eungyu around.