I read until chapter 40 and some of the recent ones in 2 hours, and for what I seen so far this is in the club of the authors that bites more than they can swallow, too much characters to someone actually care about any of them, the author is trying to make character development, but again with 500 characters is nearly impossible and they are as shallow as it can get, and the history basically don't go to anywhere is just chaotic punching with the author trying to input some wannabe development with extremely low progression and some 1 or 2 filler chapters between fights.