The starry sky means that the night is about to end. Shu Yun, who grew up in a single-parent family, was abandoned by his biological father and lived with his mother. In junior high school, Shu Yun was discovered because of his affair with his teacher. His lover's cowardly escape made Shu Yun feel disheartened. He was discriminated against in high school and forced to drop out. Unexpectedly, his half-brother Zhao Han had no choice but to live with Shu Yun because his father was in jail. Life seems to be different.