Su Mo lost his only relative, his grandmother, before the college entrance examination. When he was in his second year of college, he received an email and found out that the chairman of the Cheng family was her grandmother's first love. The chairman had Alzheimer's disease, and his youngest son Cheng Muang took Su Mo to take care of his father in order to fulfill his father's wishes. During this period, the two had a baby. They had a vague relationship. Just when Cheng Muang wanted to further pursue Su Mo, his nephew, who was about the same age as him, returned to China to study. He happened to be in the same university as Su Mo. He met Su Mo by chance and pursued her vigorously. When he learned about the relationship between the three, a war between uncle and nephew started...