The Alien Lord Who Travels Through the Mysterious World

Gu Tianlun traveled through time. In the main material plane controlled by the gods, he was as timid as a mouse and could stay in his territory and never leave it. In the mysterious world, he started fighting whenever they disagreed. Unexpectedly, in a few years, he became a legendary lord with the help of the resources of the two worlds. (PS: The mysterious world is another parallel world with the same power system, and there is no relationship between the two.)