Well, sorry to be the one to say this, but the creator failed. The system is broken. The giant hand and the nuclear punch are both explainable; but making yourself invisible, I am afraid, isn't. I don't have a problem with making the body invisible, that can be done by bending light rays hitting the body, but making yourself undetectable while releasing aura have to involve "In", which as you said is still a mystery. People should start giving credit for what he actually earns, nothing more. And they should not make excuses for him. He's a lazy video game addict, and needs to be told so; not encourage him to go on this nonsense of a pattern. Let him stop the shonen right there if it's really that hard to keep it going like other mangakas, unless if he intended for it to keep on making big money for years and years while playing video games.