Traveler in the Heavens

First of all, the author is still a student, and his writing style may not be very good. Please bear with me. I can't find a novel I like, so I'm trying my own level. I will also make progress in writing. I may update slowly, but I will keep updating. After all, I still have to learn. I can't lose the watermelon. It doesn't matter how many people read it, because I will only write what I want, but suggestions are also acceptable. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.