MTL - The Fourth Scourge of Star Wars - ~ Talk to Mina Bontry

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
…
It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

Unable to control his mouth, Lin Jian Yin scared away eight previous girlfriends and six previous managers thanks to his poisonous words. Finally unable to stand it, he goes to a strange antique shop recommended by his friend. The shop supposedly has something that can help him.

Even though a Nintendo that plays cartridges is a bit outdated, and probably no one plays it anymore, isn’t it too exaggerated to place it in an antique shop to sell?

After returning home with a Nintendo, Lin Jian Yin inserts the cartridge that the owner sold to him at a huge discount. Only then does he discover that this is actually a simulation game. The female protagonist isn’t a cute loli, nor is she a mature woman. Rather, with her old lady hair and blue-white slippers, she is such a frightening woman that calling her a Taiwanese babe would seriously be insulting Taiwanese babes.

Gods! His mission is actually to help this woman marry a perfect prince! How is that possible!!!

Wait, as the main guy protagonist, Lin Jian Yin actually isn’t the prince. Then, then, who exactly is he… No, “what” exactly is he?

Traveling to a parallel world, Gu Miao became a hard-working animation director.

When he emerged from “Pleasant Goat and Big Big Wolf” and successively produced many phenomenal and explosive animations such as “Bear Infested”, “Happy Baby”, “Super Beast Armed”, “Guobao Special Attack”, the industry suddenly set off a sensation. There is an upsurge of “traversing themes”.

Facing the reporter’s interview, Gu Miao waved her hands and said confidently: “No one knows time travel better than me!”

Thus, “Digimon” was born…

- Description from novelbuddy