[Doomsday zombies, devil fruits, superpowers, base growth, strong protagonist, decisive killing, single female protagonist]
[Note: If you haven't watched One Piece, it will not affect your viewing]
The end is coming, civilization collapses, zombies are rampant, and alien beasts are rampant.
Chen Yuan accidentally traveled through time and found himself in a desperate situation.
Fortunately, Chen Yuan has a golden finger nearby - a tree that can bear various devil fruits in the world of One Piece.
If someone else eats the Devil Fruit, Chen Yuan will get ten times the power of the Devil Fruit.
Slowly...
When the world-destroying abilities of earthquake, flash, and magma began to be infinitely superimposed on him alone.
This collapsed world has welcomed its true god.
It looks pretty good, but not enough