Solo Leveling System With Upgrade

Solo Leveling System With Upgrade summary:

A guy is accidentally killed by G.o.d when he tries to change his luck or rather his lack of it. As retribution G.o.d lets you reincarnate in a world of your choice and create your legend or harem. The first world was Naruto, which ones will be next?IMPORTANT: I have no copyright on Anime Naruto and none of the anime worlds that appear in this story, I 'm just an ordinary guy who is making a story half a mouth for hobby