Siheyuan: Sign-In Rewards the Rumble-Rumble Fruit

He transmigrates into the role of a machine repairman at a steel mill in 1921 and gets bound to a bizarre sign-in System. Every day it gives him Tian Fu Hao braised pork knuckles and Daoxiangcun pastries, but his beginner's gift pack is a Rumble-Rumble Fruit. In the chaotic years of this old Beijing courtyard, he's going to become the God of Thunder ahead of schedule.