The MC kind of sucks. He can’t even beat a lot of the major players when they have all just started. The excuse is he isn’t strong enough yet. That he is too good at fighting and so his weak body means he just sucks. WHAT!?!? You should be able to beat people about as strong as you if you spent 70 yrs fighting with super human abilities.
It was a nice sounding story with good pacing until Freya showed up. Then it was lazy forced jokes that were just awkward and an annoying side buddy. It was not a character Oster knew how to write and a lot of the interactions seemed like copy and pasted dialogue from a very bland teen drama. Then all this lamely explained changes to make the MC feel like it was a problem he was taking things seriously. During this journey, the MC was not some hardened survivor on a mission during this time, he became a flimsy character that would just change personality traits because “she’s right, I should act like an idiot since I’m supposed to be like 20”. That whole journey to Centrifuge was a waste of time.
Also, there is absolutely no reason he could pick up a gun and use it. None, it would have helped a lot. Or even sold well. This is completely ignores without reason. So many bad guys almost kill him with a gun. He talks about how dangerous they are and they could easily help him gain strength. The leveling/hunting situation is also not very consistent or sensible. Comparing the average person to the MC, it seemed like they could level comparatively at first. Which was wild.