I don't know how Stone's mother went bankrupt.

The investment failed and went bankrupt. Stone's mother is a professional lawyer with strong working ability. She went bankrupt because her investment failed. In the 30th episode of "Twenty Don't Confuse", she went bankrupt because of investment failure. Twenty Not Confused is an urban inspirational growth drama directed by Li Zhi, starring Guan Xiaotong, Jin and Niu Junfeng, and starring Guanjin Bu, Li Gengxi, Cao Enqi and Xu.