i have read a LOT of manga, and yet i know that there is always an almost infinite number of them that i have not read, so i am hoping for some help here, i am looking for some manga where the mc is an average-ish dude, and he is dumped into pretty much a whole new world, and must gain strength to survive, a few examples would be
Breaker and its sequel The Breaker - New Waves,
rosario to vampire and it's sequel rosario to vampire - season II
or even yu yu hakusho

can you guys help an "American Otaku" out?

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