G: Gullible

She is very gullible since it seems she hardly sense danger and always let her guard down. Killua did dislike that fact but the fact that Killua can take advantage of that for himself and Gon had trust him so deeply, making Killua think that it's not bad for her to have that personality.

O: Odd

It was odd for both of them to get along with each other since they have different lifestyle. For Gon to grow up in nature, loves to fishing and really close with animals while Killua grows up in a family of assassins, undergone severe trainings and killing. He did think how odd it is for her to be able to love him but after a long time being with her together, he didn't find anything odd with it.

N: Naïve

She is truly naïve for Killua since she hardly knows anything. Killua never knew how she is able to say those embarrassing things with a straight face. Especially when she always asks a lot of question that always made Killua sweatdrop or facepalm for her idiotic.

"Killua? Where do babies come from?"

Maybe he will answer this question. He would give details in future, with practical lesson.

F: Fun

Being with Gon is fun for he could be himself with her. He feels that he have fun in whatever he was doing with her.

When they are talking together.

When they are shopping.

When they are training together.

When they are having a pillow fight.

And- when they are having their "private" time together.

Oh yes, among all of those. Killua found that their "private" time made Killua have more fun than the usual.

R: Reckless

Killua can't stand Gon being reckless since Killua concludes that Gon is indeed selfish for she never let him to be reckless. Currently they are arguing about it and both sides do not want to lose until Killua shuts her up with a kiss making them having a dominance battle.

E: Elegant

Killua's going to fish with Gon again making Killua keeps grumbling about it since it seems all they are doing most of the time are fishing. The moment he sees Gon, he felt his breath stopped as he look at Gon who waving her fish rod before throw the bait for the fish. Even it is just a moment; Killua feels that Gon does look elegant while fishing.

E: Enthusiasm

Mostly Gon is enthusiasm in new things. Such as training, discovering new species or learning new things.

She is also really enthusiasm in going on with Killua who got tickets to the amusement park. Killua amuses and smirk as he realized the reason why she is enthusiastic is because she is enthusiasm going out with him.

C- Cute

Killua is waiting for Gon in front of dressing room, apparently Killua can't stand Gon's green attire and decided to take her into shopping new clothes for her. The moment Killua heard the door has finally opened, he takes a look and blushed seeing Gon wearing a blouse with a matching skirt.

"Cute" is the first word that is out from his mouth before staring at Gon for a long time making her blush causing Killua to compliment her further.

S-Sweets

Killua loves sweet especially chocolate, to the point he spends millions of money to buy those. Even so, he discovered a new sweet that is even much better than his most favorites choco balls, chocorobo-kun.

And that is the sweet taste of Gon's lip on his owns.