Chul Soo

Chul Soo is a twelve-year old boy who attends an acting training course. One day, the teacher arranges for him to rehearse a "love confession" scene with the prettiest girl in class, Yeon Hee, but he is unable to perfectly portray the feeling of his heart pounding. However, when his acting counterpart gets replaced with Soo Hyun, a male classmate, Chul Soo realizes that some emotions don't need to be rehearsed...
(Source: GagaOOLala)