Since you seem to use IMDB as your reference site: https://m.imdb.com/title/tt22249034/?ref_=fn_al_tt_10
It’s more shounen so the violence isn’t as graphically detailed as Hell’s Paradise, Dororo, etc.
You might enjoy this as well https://m.imdb.com/title/tt25534100/?ref_=fn_al_tt_2
That’s the version I was talking about. As stated I didn’t really get into it but did remind me of Hell’s Paradise.