Starting with a Siheyuan in the Myriad Worlds, I Get a Universal Space

Chen Tai encounters a “big delivery” from the start. Left with only his soul, he is carried away by lightning. After drifting for a long time through an energy passage, he finally escapes the mysterious tunnel. He possesses the body of a 16-year-old boy. From the surroundings and clothing, he deduces that he has arrived in the modern era. He is also an orphan, and key memories and skills from the body's original owner must be unlocked by reaching certain milestones. He goes to Fengzeyuan for a meal and meets a young He Daqing. Eager to make a connection, he discovers that He Daqing isn't even married yet, let alone the father of the protagonist Sha Zhu. Chen Tai then uses the news that this place is about to become a battlefield to strengthen his bond with He Daqing, and asks him to make some tasty, portable dry rations. His influence on the main plot earns him a huge amount of fortune energy, and a new farming space appears, where he can raise all kinds of creatures. After wiping out every member of a Japanese trading company, he goes looking for his next target: a Japanese mining operation. On the way, he runs into the unreasonable warlord Cao Kun. After assassinating Cao Kun, Chen Tai uses his portable space to develop a human-skin mask, disguises himself as Cao Kun, and takes control of his forces. He starts by restoring order in the county, eliminating sources of instability, and dismissing the old and infirm from the army. Later, he leads a cavalry squadron and a newly formed city defense battalion in a raid on the Sakura Trading Company, which has come to make a deal with Cao Kun, and takes control of the mine as well. Chen Tai begins sorting through Cao Kun's assets and troops, preparing to resist the Japanese invasion…