This is supposed to be one of the main characters of the webcomic I am currently writing.

His drive to gain strength, max out the power of his abilities

charismatic/charming

Slightly mysterious

very open-minded and open-hearted 

neutral chaotic

the fighting style is more stealthy, draws from dark arts

his master is the leader of the darker arts (evil lol)

he will have a change of heart inspired by his romance which is a main plot driver, when in love shes much more shy but very passionate

after this he's much more intentional and protective