Siheyuan: Discovering Yi Zhonghai's Poison Plan at the Beginning

In his previous life, he was foolish and kind, and became a tool for the whole hospital to provide care for the elderly. As a result, his family was ruined and his body was left dead. Going back to the year when his father eloped, He Yuzhu saw through Yi Zhonghai's hypocritical schemes, and with the proficiency system in hand, his nurse sister became rich and crushed all the beasts.