This is an age when old gods slumber and truth lies obscured, while the Gray Tide sweeps across every inch of the star sea.
Atop the White Tower, wizards burn the midnight oil, declaring that only knowledge can illuminate the endless night;
Within the Divine Court, the gods raise the branding iron of faith, vowing to nail all who show disrespect to crosses of light;
In the depths of the Abyss, demons and devils gnaw at one another, seeking to spread chaos and desire into every world.
In this age, Sain transmigrated to another world, only to become a sacrifice put up for sale.
Until, beside the pyre where he was to be sacrificed, he awakened a System that could analyze all things into "traits"
[Rotten Flesh] + [Origin Energy] = [Immortal Body]
[Immortal Body] + [Beast Bones] + [Runes] = [Steel-Boned Corpse Puppet]
[Perfect Creation] + [Divine Blood] + [Soul Spring] = [Divine Creation]
[Flesh] + [Void Core] = [Rotten Realm]
[Soul] + [Threads of Fate] = [River of Souls]
Flesh for a brush, decay for ink, the dead for soldiers.
See how Sain, starting as a sacrifice at the mercy of others, stitches all living beings together, usurps the gods, and ascends to the supreme throne of creation.
(Dark Wizard, creator-style progression. Steady-paced, no saintly protagonist. Welcome aboard.)
It's not bad; the world-building is logical, but there aren't enough updates.