Mc died, got turned into an dream spirit. Eventually evolved to be a goddess like being with power over dreams, illusions and will be able to turn said dreams or illusions to reality.

Additional info :
-No romance for mc
-The romantic subplot is for side characters
-If there are harems, they are only for the side characters
-No smut or sex scenes, probably barely ecchi stuff max

I wanna create an mc with that grind and suffers much daily to get stronger I guess.