"The story starts dark by depicting illegal drugs, slavery, organ traffic etc, and the MC taking advantage of this to illegaly acquire his own super power which after a registration with the government he discovers to be extremely powerful, in commemoration to his success he invites a few friends to party and hear from one of them how their gradparent is sick and normal doctors cant cure him, he then commits to aquire illegal drugs (brain fluid from a young esper) for his friend's grandpa. immediatly after a small raid on earth happens, and all Espers present in the area start throwing themselfs at the raiders with total disregard for their own safety and their next of kin, including the MC, to "heroically" save normal humans from the raiding espers when there is about 1/100 000 espers/normals on earth, begginer MC gets most of the credit. Later when acquiring the "medicine" fresh from a visible 21yr old male strapped to chair with a drill on his skull from the dark net, he light comments on the cruelty of the methods to the vendor, who replies saying the dude is a pedophile. "
Its weird how he had a very friendly relationship with the demon lord to the point of knowing her personality, having been offered to "have half of the world if he joined her" and when he refused her... she lets him kill her so that he can return home. Right after that he is betrayed by his former companions for whatever selfish reasons they gave him and now wants revenge on everyone. I say its just his karma, he has no moral ground.