Responses
The only way left is I think that short period of rest to insert a time skip before Cale goes to help Tunka in a disguise. He'll definitely have to have the hair length for that.
So maybe the manhwa will make a time skip - it's like a month in the novel, but manhwa could make it seem like several months passed.
He got his own midnight barber snipping away in the night
I imagine the black dragon is the one snipping his hair to create a protection or tracking spell.
I'm confused why his hair is still not long there's less than a year left for the start of the war, his hair should've been at least a bit longer by now, i remember his long hair was first mentioned even before the war, it was during the hais islands strategy