My World Is All about You - Chapter 47 - Deceive the Heaven and Cross the Sea

Demons in Academy of Light are described as vile, dark, cruel, evil, impure, and a whole lot of other things. At least, that’s how they’re portrayed in the game—a sacred land where demons and dark energies aren’t supposed to exist. That’s how it was supposed to be... So what the hell am I supposed to do now? Thanks to my rotten luck, my soul ended up possessing the lowest-ranking demon, the one who dies at the very beginning of the story... I’m screwed! I have no other options left... If I want to survive, I have to kill the protagonist.

The first time they met they had battled fiercely, just for a mere bunch of herbs. She needed it to save people, and he wanted to use it to save his own life.

“Welcome aboard the Dimensional Rift game exclusive train. This train will depart from the Level E Departure Station and head to Level D stations. Please ensure your safety while boarding in an orderly manner and abide by the train rules.”“The train rules are as follows:”“1. Do not bring non-game items onto the train. (Underwear is the exception)”“2. Consumption is mandatory. (All train staff are unpaid volunteers)”“3. Do not turn on the lights after they are out. (Except for those who are exceptionally talented and courageous)”“Additionally, the train encourages various leisure activities such as sneak attacks, brawling, and predation. Players are free to choose.”“We wish you a pleasant journey.”

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!