His name is Jung Taekwoon or also know as Leo, main vocalist of the boy group called VIXX. He is 25. He is really a cold person, he doesn't speak often, he loves playing the piano, write lyrics, running, doing some sports, and just staying in his quiet world. 

Her name is Park Sojin, she is 29 and she is the leader of the girl group called Girl's Day. She is really a kind person and a nice girl, she loves singing, playing the piano, go shopping with her fellow members, she has a bright personality, she is really patient and optimistic.

Jung Eunji or also the '' Happy Virus '' of A Pink, she is 22 and she is really a lively girl, she loves acting, singing, eating, she rarely stays quite and silent, she is pure happiness and a lot of people loves her presence, she is not good at dancing but she makes fun of herself and laughs a lot because of it.