Han-Soo (On Joo-Wan) lives alone with his mother in a small town by the sea. He is the star on his school's swim team, but, just as they are preparing for a national competition, Han-Soo quits the team. Han-Soo then learns that his mother attempted to commit suicide. Han-Soo now finds himself having to take care of his comatose mother and all the bills at home. Meanwhile, Han-Soo falls for his much older neighbor Yoo In-Hee (Kim Ho-Jung).