Pretty sure its 17-18
Honestly I don't think he aged at all since transmigrating into that world. It was mentioned in the beginning that it's been several decades. I'm not surprised if he's the same age or older than that assassin butler.
There was never an exact age! But he is way older than Ron. An estimate was 100+ but his body is still around 17-18. It will be revealed why a loooooot later
He's a couple decades old... But his body is 17
If I remember right is actual age isnt said, at least in 700 chapters which is where I'm currently at in the novel bit it's repeatedly mentioned that he's been alive for a REALLY long time, hundreds maybe thousands of years. And I'm pretty sure they mentioned it might rival(?) a dragon's life span cause apparently he ages really slow in this world compared to earth
Tell me what Choi Han’s age is like in the recent chapter