The colour pages looked a bit spotty, I couldn't be sure though.
This MC's mentality is somehow worse than being that of a 14 yo, he's lived with the maturity of a 14 yo for an extended period of time and somehow not developed the awareness of the sheer amount of agency he has in some fields, like the romantic entanglements he could accept at any point or enforcing his will upon the world. Dude doesn't want any responsibility but was functionally forced to take it up in the parallel world and that training has stuck.
It's the weirdest mindset, he is lacking desire or even awareness of his own desire. He's clinging to what must've been his copes in the parallel world. Anime, manga etc. But it's like he's not quite realised just how much he craves both social connection, societal recognition and likely motivation as well. It's a wonder he hasn't broken completely really. The way all the bit villains around him and really everyone have since tasting power. I guess it's because he didn't desire it for anything other than getting home.
Like in a different story this would be the villain origin.
Thanks for the TL