Stella and Ian meet as actors and idols, instead of high school rivals. Will they clear up their mess? or will they hate each other forever?

A-na, an easygoing, eccentric student finds her new math teacher Ms. Yu absolutely alluring; it is love at first sight. She is determined to make her new teacher see her in a different light; to be hers. As she traverses her newfound feelings, she must first prove to herself that she has the worth to feel her teacher's love. Yuha, a recent college graduate, takes a job at Heart High. In her first year on the job, she must learn the ropes of the career including teaching responsibilities, mingling with co-workers, and handling a variety of kids, most notably the loud obnoxiously talkative basketball player A-na. Yet, for some odd reason, she keeps seeming to meet her by chance.

Stella and Ian were never meant to kiss when they were five and four. Maybe it was all Carmen's fault for pushing Stella... Eleven years later, Ian still hasn't forgotten that accidental kiss from childhood, even though Stella has long since forgotten her.