There's Something Wrong with This Otherworld

I, Liu Jin, a man from science and engineering, have traveled through time. The day before crossing: The wire was bitten by a mouse. Day 7: The wolf howled outside my yard all night long. The first month of time travel: This village has no food, no water, no salt, and no iron. --- My plan is simple: dig canals, repair waterwheels, make pottery, farm, and generate electricity. With the level of a man in science and engineering at my university, is it not easy to build infrastructure? --- This carrot! Why is it as big as 100 million points? The jackal staring at me didn't look like an animal. There are also "things" in the mountains that shouldn't exist. --- After a lapse of many years... Liu Jin: Something is wrong with this other world! [Dear viewers, this is a fantasy world, brought into reality in a hurry; Regarding the unit, "meter" is used uniformly; Due to personal time reasons, it is tentatively scheduled to update one episode per day.