The simplest of choices can shape our lives forever. Returning to college after a break, Kwon Yoonho decides to take a pottery class. But what he doesn't know is that his instructor will be Lee Suyeon: a professor with a reputation for favoritism whom all the students go out of their way to avoid. Yet from the moment Yoonho lays eyes on his new teacher, he recognizes the same quality of isolation and solemnity that has been ever-present in his own life. The two begin to mold a deeper connection as their lives become intertwined; but when Suyeon's ex-boyfriend – and first love – Choi Gyeol makes a sudden appearance, an unbridled sense of jealousy and possessiveness becomes impossible for Yoonho to ignore. Will this unexpected interruption cause the foundations of their love to shatter? And if it does, who will be left to pick up the pieces...?