7 years ago, Meng Nian's father killed Gu Zichuan's father, but Meng Nian was pregnant and gave birth to Gu Zichuan's child. 7 years later, she comes to Gu Zichuan seeking help to treat her daughter, who has leukemia. Gu Zichuan responds with harsh humiliation, but when the truth of what happened seven years ago slowly begins to unravel, he regretted...