Siheyuan: Marrying He Yuyu at the Beginning

[Everyday, funny, no violence] Qi Cai accidentally traveled to the courtyard house in 1964, became the target of He Yuyu, and awakened the keyword system. He was originally a police officer, but because of his father and He Yuyu's fiancé, he was selected as an undercover agent. He joined the security department of the steel rolling mill and was assigned to a courtyard. The saboteurs were in the courtyard. Jia Dongxu died mysteriously and the factory machinery suddenly failed on a large scale... But Qicai just wanted to live his small life and use the system to amuse the birds, but he discovered the truth step by step. As the times changed, the protagonist went to sea to do business, but he was involved in incidents one after another...