The Zoldyck "Eye" of the Storm: The design's focus on Killua's eyes (or the lack thereof) is a stylistic choice that hints at his complex nature. Killua is a character who often hides his true feelings behind a calm or mischievous facade. His blank, shadowy expression here can be seen as a representation of his past as a detached assassin.

A Symbol of Friendship: The subtle purple detail on the collar is a nod to Killua's signature attire in the early arcs of the series, where he is almost always seen with a purple-collared shirt under his regular clothes. This detail, though small, is a key part of his iconic look and a reminder of his journey with Gon.

The Simplicity of Power: This minimalist design mirrors a key theme in Hunter x Hunter: that true power isn't always flashy. Killua's abilities, particularly his Nen, are incredibly refined and precise. This simple, clean design reflects his ability to achieve devastating results with minimal effort, a hallmark of a master assassin.

A Fan-Favorite for a Reason: Killua is consistently ranked as one of the most popular characters in the Hunter x Hunter fandom. His emotional depth, powerful abilities, and compelling character arc—from cold-blooded assassin to a loyal and caring friend—make him incredibly relatable and admired by fans worldwide.