After a car accident leaving her sister in a coma, Sim Bo Nui becomes deeply superstitious in hopes of a miracle. Two years later, a fortuneteller tells her the only way to save her sister is to spend a night with a man born in the Year of the Tiger. Enter Je Su Ho, a rational and skeptical gaming CEO who doesn't believe in fate. As Bo Nui tries to win him over, their unlikely connection leads to a surprising romance—further tangled by the return of Bo Nui’s childhood friend and first love.