Irina is a new student at Seoul High. Not much is known about her other than she keeps to herself and is mostly quiet during school hours. 

Aika lives with her three best friends: Irina, Cee and Annie. They live together in a house close to their school. Aika, Irina, Cee and Annie are all Seniors.  Aika - Main Character of the story. Childhood friends with Choi Seunghyun aka TOP of Big Bang and Irina. Quiet, timid, yet very hyper when around her closest friends. Is loyal with people she loves and extremely