Kurohime (manga)

Actually i like this Zero, a shinigami, (Dark Zero) rather than
the former one (that looks like a girl and acts very sissy)...

This is from a manga called Kurohime... But although the art style not really nice but the story is nice and with some little sad parts like when Zero dies (his bones even melts in the acid river) and was revived back by the enemies and turned into a bad guy (Dark Zero)... Still, it also has romance in it... But is more to adventure kind of stuff!

So go to onemanga.com to read if you want lol~