......

So he massacred the other gods to become the only all powerful one and yakuto wants to kill him to get revenge on massacring his whole 'race'? I am not completely sure how the roots system works yet but that is what I got so far...

Poor guy

How the classes are made ? Is there any years ? Clearly that class F is stronger then the D. In the meeting, they talked about that class, so it's the only one killing people?