its just the most medicore show that couldve been so muh better.
numbers decide when u die and you can increase that count by doing something, sounds cool, it also decides your power scaling, is what it tells you throughout the whole thing but then goes and messes it up near to the end.
the charcters arnt bad and the concept of this show is amazing, if this was excuted properly it would certainly be higher, the mystry behind the heros was interesting and well done but after that it went downhill.
its a kind of fun watch as long as you dont watch the last few eposides and keep it at that.
decent show, if you wanna kill time and switch your brain off give it a watch