Looking for a seinen Light Novel

Hey, I'm new here and right now I'm searching for a novel, which is more seinen like.

1.) The MC has to be strong (OP would be nice to, but just "strong" is good enough)

2.) In the light novel, there has to be killing. The MC should also kill people and not be an idiot who always screams "I'm going to save everyone, dattebayo!"

3.) Some romance between a female and the MC has to be there! I don't care if it's a harem or not, but romance has to be there. Sorry, I like that kind of stuff:rolleyes:

4.) I'm not a fan of rape, so please without that (Well, rape can happen in the story but please not to the main characters. I can't handle a second *SPOILER* "rape of caska"

Yeah, these things are what I prefer in a novel, so please help me find some :)

(I'm from germany so my english isn't that good)

Looking for a seinen Light Novel