Gu Lixiu suffered a lot since he was a child, and you later found out.
Erci was an insignificant presence in the family since childhood, but later became the most important person to Gu Lixiu.
Gu Lixiu's wish when he was a child was that his mother would live a long life, and that when she grew up, she would always be by your side, and that she would die late and day after day.
Purpose: Socialist Brotherhood