Iron-Blooded Warrior: Jinwu

Also known as Warhammer: Infinite Crusade. (The author ran short on inspiration and took the plot in an odd direction, so this story has changed from a gritty military tale into a Warhammer story.)

For reasons unknown, Abel became the transmigrator everyone envied.

But on his very first transmigration, he ended up in the Warhammer 40K universe. When he realized what kind of world it was, he cried like a grot who'd just had his toes stepped on.

“Wasn't there supposed to be a friendly fantasy world with elves and orcs? What's Warhammer 40K? System, you set me up!!”