AS A GOD IN WARHAMMER 40,000
"Praise the Emperor!"
Cassian—a shut-in who is very good at video games, and someone without a social life other than enraging other losers in the Internet—dies and finds himself stranded in the grimdark universe of WH40K.
A Universe filled with Factions all fighting for power: The Imperium of Man, the Chaos God, the Necrons, the Tyranids, the Aeldari, the Orks, and other more groups of interest.
All equally dangerous, all equally terrifying, and all equally powerful to the point that death is never really a respite even to someone like Cassian, no matter what group he stands with.
Horrified about the thought of dying, again. Cassian's worries was solved by a machine that only he could see, his cheat code, a golden finger that he recognizes from novels and manhwas that he read from time to time when bored—the System.
And with it he was able to occupy one body after another, with each death bringing in a new body for him to occupy. Until finally, he was able to satisfy the System and unlocked the basic functions of it.
In which he found out step-by-step the nature of his System, and the possibilities and abilities it possess. To the point that he became a new type of God in the neverending game of WH40K.
[ CONGRATULATIONS PLAYER FOR UNLOCKING THE GOD OF DEATH SYSTEM! ]