Reading this just feels like the whole story is pointless. The MC is an overpowered psychopath that has no feelings and gets everything he wants without struggle. All of the good stories have a goal that drives the MC forward and gives him strengh to overcome the obstacles, and there’s no such thing here. He wants power, but why? He doesn’t seem to care about anything, there’s no romance, he doesn’t have friends, no family, it doesn’t matter who lives or dies. Overall, the MC just feels empty, like he’s not even a person, and this is so boring to read.
Then the author uses the excuse of being “evil” to justify the MC’s lack of personality... I like evil characters, and I love to read things from the villain’s perspective, but this was not the case here. There’s no character development, he’s just a bland character without emotions.
Enough about the MC, now let’s talk a bit about the story itself. It’s clear that the author has a lot of knowledge about Hunter x Hunter, the grammar is good, and these are definitely good points in any fanfiction. The abilities he came up for the MC are very original and it made a cool image in my head.
The pace is definitely a problem... It starts slow, then we have massive timeskip and suddenly the MC abused the hell out of his ability and he’s now the strongest being on the continent. Like, wtf? I almost dropped it there. I understand that some people find “training arcs” boring, and it must be even worse to write one, but this is simply ridiculous. It feels like he didn’t even have to work for it.
Now the MC is extremely overpowered, more powerful than any character in the anime/manga, and the only “goal” he has is to get even more powerful... All the action we got so far is he beating people that are a thousand times weaker than himself. There’s no one who can challenge or be a threat to him. And this is not fun to read at all.
Author, all of this is simply my opinion, and I believe that constructive criticism is the key to improve at everything we do. I’ve read your Naruto story too, and if I were to review it, my feedback would be basically the same.