>>719082874
Context of the bigger picture: the world of TWEWY (which is strongly implied to be part of the KH universe) is ruled by higher beings refered to as Angels, who use lesser higher being called Reapers to enact battle royale-style games on the planet for the sake of scientific study (for their prospective, things like death of a being is just data being transferred from one plane of existence to another like in a computer; if this plot point sounds familiar, the Lufenians from SoP are loosely inspired by this). Humans with sufficient determination and ambition can become Reapers and even Angels on the long run, but it's not an easy process.
Worth noting also that the higher beings normally don't give a shit about humanity at all, viewing them like microbes for their testings.
By the time of NEO the Angels due to shenanigans have employed one of their kind, Kubo, to erase a portion of Tokyo, Shinjuku. Kubo decided to do so by infiltrating the local Reaper group with a cover, Grima Wormtongues his way into them and convince them to fuck everything. (1/2)