User blog comment:Bennlimos/Understanding the Zoldyck Family's Nen Situation/@comment-26566783-20151018202658

i think milluki does not know nen and its because his family didnt feel like he would ever need it because he never leaves the house and just is on a computer all day. and i think killua thought dragon drive was like a fighting move like how killua can move his hands like snakes and destroy someones arms like in the chemera ant arc