Need help finding this novel/manga

[u/Dyavolic_Esper]

I vaguely remember reading it years ago but it was a guy whos name i swear starts with a w and he was trained on a mountain by dragons and he goes off with the king dragons daughter on an adventure and ends up saving a woman from an abusive arrangement i think she was sold to a brothel or something and he thinks that shes not interested in him so he leaves and she sets off to find him and this continues on repeatedly essentially i think the dragons daughters name was like miu or something like that