after a few times of J looking down on him and V just completely ignoring him but Uzi still being there for him but not enough to cheer him up N has finally shown disdain and hatred.....so he got akumatized by Hawk Moth

N: I've had it with J and V constantly degrading me.....I will make them pay...

A dark purple ether surrounds and covers him until it disappears....N is now Negativitileen....

Negativitileen: hehe....time for everyone to suffer, get looked down on and be despised..... HAHAHAHA