Thoai and Linh have been a couple since high school. While Linh is a successful fashion designer running her own brand, Thoai is just a taciturn mechanic working at a garage. Linh decides to leave him all of a sudden before she realizes her pregnancy, and is unsure if Thoai or her high school crush, Khanh, is the father. Thoai has no choice but to try to win the love of his life back.