I like them big, do you? - Chapter 1: Reylins time!

In the Province of the Nine Skies, far above the heavens, there exists Nine Galaxies of Astral Rivers made up of countless constellations interwoven together.

The end of the world is coming, the world has undergone great changes, and everything has changed. Plants, animals, and even insects, as long as there are living things, have mutated.
Become more powerful, and even evolved supernatural abilities, such as chickens and ducks that can fly to the sky, such as cats and dogs that can breathe fire.
But only humans, without any obvious changes, seem to have fallen from the top of the food chain to the bottom of the food chain overnight.
Any creature that can open its mouth to eat can treat humans as food.
But fortunately, this world has not completely killed humans. Gradually, humans discovered that they had the ability to cultivate compatibility with other creatures.
As long as it has a high degree of compatibility with some powerful mutant creatures, it can be used for its own use to achieve the purpose of protecting itself.
Fang He is a person who is very compatible with mutant animals, but it is also because of his ability that he has changed from the strongest to the stupidest.
Fang He, who was reborn, said, “Hmph, this time…”

- Description from novelbuddy

Lin Yu finds himself transported to the world of Honkai: Star Rail.Equipped with a divine mobile game development system, his first project is creating “Honkai: Star Rail.”Soon, his game captures the attention of the entire universe.As players reach the Cocolia boss battle, the song ‘Wildfire’ begins playing.“Woah?! This is a turn-based game; how dare you make it so intense!”“The moment this music kicked in, I felt like I was about to take down an Aeon!”Progressing further, they encounter Dan Heng’s sea-parting scene.“I thought ‘Wildfire’ was intense enough, but there’s even more fire here!”“Dan Heng, still denying you’re Imbibitor Lunae? Now you’re a five-star limited character!”Arriving at Penacony:“Huh? Have you listened to ‘WHITE NIGHT’?”“Acheron’s power has been tested – fellow gamers, feel free to pull for her!”“Duke Inferno: Children, this isn’t funny.”“Before experiencing the story: Aventu**ne? Just another profit-driven fraud! After the storyline: May the Mother Goddess thrice close her eyes upon thee…”“What Aventu**ne?! He’s clearly my unfortunate yet loyal bro!”