There is a manga called:
White Epic.
I left the link in the title. It's about a hero (martial arts + super powers) that comes to save the world from monsters that eat humans...what I liked about it is the gore, as you get to see the monsters literally take bites off of the humans, children and everything.
Anyhow it's got 86 chapters and a lot of the chapters have 30 pages a pop. So it's something to pass the time, the pacing is dope too and the main characters a little bit bland (just a bit though) but with a more than decent dynamic.
The bad guy is Aizen like. So that's another plus.
For any of the brehs wanting to check it, you most likely won't be disappointed. It's at least "B+" material.