I Can Tamper with Everything

This day. Like most protagonists, Mo and the customs traveled through time, but his treatment seemed to be very different from ordinary time travellers. He traveled through a slum where even the air was charged The original owner starved to death, and his sister fell into a high fever and was on the verge of death. He sadly discovered that he had inherited the body of the original owner who was about to starve to death. As a social animal who has nothing to do but communicate on the Internet, he found that there is no difference between a modern person and the people here except for his ideas. I'm about to starve to death just after traveling through time. What should I do? Wait online. It's very urgent...