Honestly, this is the first chapter to seem interesting in a while.
But just because of lore revelations that are supposed to be skimmed over, it seems.
Dude starts with knowledge of the past. Whenever in trouble he unlocks more and more physical skills of the past. No tension. Hell, he is even still on a rank list of the strongest in the world as the big one.
Then when he meets people of his past life he acts completelly aloof, even though they treat him as their most trusted friend.
But now we have info that he had been secretly enslaved all this time. This could change some of the plot. Or even give some!
...97 chapters in.
Definitely not enough to make it interesting, I must admit. But it is potential to get better.