Siheyuan: Reborn as Yi Zhonghai, Surrounded by Grandchildren

After being reborn as Yi Zhonghai, he divorces First Auntie from the start and awakens an Investment System. A little guidance for Jia Dongxu earns him advanced fitter skills; teaching Silly Zhu one dish earns him god-tier cooking skills; treating Yan Bugui to a meal gets him the knowledge database of Wenquxing; and befriending Liu Haizhong earns him advanced forging skills... From then on, Yi Zhonghai takes a very different path in the courtyard, becoming a First Master praised and admired by everyone there,