Responses
He did dye his hair darker to hide that fact he is the well known S hunter J.
Yepp, the person answering before me is right, and I would add that there is a reason why his hair is grayish (in the novel too), but that will be revealed much later. I won't spoil it hehe
Ooooh can't wait(๑•ㅂ•)و✧
His hair in the beginning was grayish and in recent chapters they made his hair in the past black/dark brown, is that how it is in the novel? Or is it just done as to not confuse the audience? ٩(๑❛ᴗ❛๑)۶