Extend-o-Hair

Hair Extension (伸毛) is a Quirk used by Nagamasa Mora.

Description
Through his Quirk, Nagamasa can manipulate the growth and control the movements of his own body hair. This Quirk is very powerful, as it allows Nagamasa to incapacitate a large number of enemies at once. It is prone to getting tangles often however, which can be painful for him.

It's unknown if Nagamasa's usual hairy appearance is a result of his Quirk being activated or if it is his natural look.