Adapted from the novel "Desire" by Red Hat, the author of Tomato. A pair of childhood sweethearts missed each other due to a car accident, and when they met again many years later, they became half-siblings. The two went from testing each other to pulling to the limit, entangled and struggling between love and possible feuds. After unraveling the mystery, they worked together to reveal the truth of the car accident, and the lovers finally got married.