Perhaps because he was nearing the end of his life, he found himself constantly reflecting on the past these days. He remembered what Shen Mianmian was like as a child and the things Zhou Lanfang had done over the years, and he realized that he had treated Shen Mianmian very unfairly.
His thinking was selfish back then, claiming to have her best interests at heart, to treat her as his own daughter, yet in reality, none of his actions were truly to her benefit.
If there was anything he did right, it was probably picking her up and sending her to school.
Luckily, by that time, Shen Mianmian had become sensible and started not to listen to him. Otherwise, she would never have had the chance to go to university—a promising young life would have been ruined by him and Zhou Lanfang.
In contrast, Zhou Siyu, for whom the family had spent so much money, didn't get into a very good university, and in the end, she didn't even acknowledge him as her uncle.
Sinful deeds!