A journey through the universes

After death, God became interested in me.
Gave me the system.
Made it possible to travel between worlds.
Gave immortality.
The price of all this is very simple.
I become his entertainment.
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Worlds in which the main character travels - HighSchool of the Dead, Naruto, Akame ga Kill, One Piece.

I am not the author of this fan fiction and am only engaged in its translation.

The author is - vitotitov (Пожилой Енот)