I Carry a Door with Me

Cao Xin, a young man from Earth, died in a car accident and transmigrated to a chaotic martial world where supplies were scarce. There, he acquired a Bronze Immortal Gate, and from then on, he could travel between the myriad heavens.

P.S. The author has completed the novels The Daoist Master of the Yellow Court, with over ten thousand average subscriptions, and Starting from the Dao Fruit and Cultivation: A Dead End!, both of which have over seven thousand. Check them out if you're interested.