Traveled Through Time and Became a Waiter

After the accident, I traveled to a mysterious world that was said to be ancient, but martial arts was respected here and there were countless sects. Waiter, what's wrong? I'm just a waiter, what's wrong? Believe it or not, I asked you to add something more to your meal! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.