Girl Pim (played by Aomiz Suchar) requests a change of dormitory after breaking up with her ex-boyfriend, so she becomes dorm mates with the new sophomore Kim (played by Tina Jittaleela). At first, Pim thinks Kim is a little boy who has entered the wrong room, but once Kim opens up, Pim realizes that she is actually similar to her. Their first impression was so bad that Pim suspects Kim has serious same-sex tendencies, and she decides to draw a line in their dorm. Although Kim tries hard to please her, Pim still finds her guitar playing and video games annoying. However, Pim's best friend has long admired Kim and showers her with kindness. It isn't until Pim goes home with Kim and listens to her play guitar at night that they slowly open up to each other. Pim grows to love the dishes Kim cooks. Gradually, their inseparable relationship arouses jealousy among Pim's friends. Even a familiar older brother claims to be her boyfriend, which hurts her. After going through many ups and downs, Pim suddenly realizes that when their hearts truly connect, there is no boundary that cannot be crossed...