Selling to the Warhammer 40k universe

In the modern world of 2022, a young man named Odin makes contact with a different world that he knows from fiction the realm of 40k. With this encounter, he gets a system that will help him sell to the many individuals in the dark far future of 40k Q. Will he gain wealth? A. Probably Q. Will he fight the chaos gods? A. Hahaha... Are You serious? Q.harem? A.No Q.Op Mc? A.as strong as an 18 y.o that works out once in a while can be. Q. Trashy system? A. I hope not. Also, please comment on any errors you find both grammatical and lore-wise I'm still new to writing.