The MC is very slow and not proactive . All his actions are reactive and there's almost no progression kind terms of his growth.

Why is he going around doing shit instead of improving ? the whole plot looks stupid

The line of actions taken over and again shows how stupid, the MC is displayed as. Very poor storytelling

Am I the only one who thinks the story was poorly developed 🤷. He was supposed to be a sealer from the title but he makes use of every other power but the sealing one with almost no progress in it for more than 70% of the book. He was developing towards being anything but what the book said he was.

most times I found it really stupid. The title says "I shall seal the heavens", but he literally goes through more than half the story, not being what the story makes him out to be or says he should be. He uses every other power but not the one of being a sealer for almost all through the book, so can't make sense of the title throughout the book.

The decision making of the Main character is terrible. He even had to sell himself as a slave, that's a very low depiction for a main character. Story progression is stagnant and weak story telling