Comprehensive Manga: a Journey to a Harem in Another World

A young man who fell in love with his current home after get off work, after a nap, inexplicably came to a strange space, which could actually connect to the world of novels he had read! What is this? Did the paper man suddenly expand into reality? If you want to do this, I won't be sleepy anymore! The world Douluo, Doupo, and Wudong I currently plan to write about have little difference in their power systems, so it's easier to substitute them into Douluo and Wudong. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.