Enhancement

Enhancement (強化系, Kyōkakei) is one of the six categories of Nen aura types.

Description
If a student increases the quantity of water in the glass during their water divination, they are an Enhancer (強化系, Kyōkakei). Enhancement is the ability to use aura to increase the natural abilities of an object or one's own body. Therefore, Enhancers are able to greatly increase their physical attack and defense and are best suited for close-ranged melee combat.

Enhancement is the most balanced category, allowing users to spread themselves evenly between offense and defense and become very strong using only simple abilities. One of the examples of more complex Enhancement abilities include enhancing one's healing factor, speed, strength, reflexes, durability, ect.

Hisoka states that the majority enhancers are determined and simple. Most of them never lie and hide nothing. Their words and actions are often dominated by their feelings. They are generally very selfish and focused on their goals.