Hyunwoo, a self-proclaimed loser in every aspect, had a rough freshman year in college and expects more of the same in his sophomore year. However, his mundane life takes a bizarre twist when he rescues an elderly snake-oil salesman one day. Grateful for Hyunwoo's act of kindness, the old man gifts him a magical elixir promising to fulfill his deepest desires. To complicate matters, Hyunwoo finds himself residing in an apartment complex brimming with attractive women, including his longtime crush, setting the stage for a series of unexpected events in his life.