Conjuration

Conjuration (具現化系, Gugenkakei) is one of the six categories of Nen aura types.

Description
If a student creates an object in the water in the glass during their water divination, they are a Conjurer (具現化系, Gugenkakei). Conjuration is the ability to create a physical, independent, material object out of one's aura. Once a person has mastered the conjuration of a certain object, they can conjure it and dispel it in an instant, whenever they want. Conjuration is the only way in which Nen can create things that ordinary people (unaware of Nen) can see and touch. Furthermore, objects or entities created by this technique have a subtle "independence" to them. This means that they can continue existing even if they were at a considerable distance from the Conjurer, or even if the Conjurer themselves are not aware that they have yet to be de-materialized. However the use of In can hide an object materialized from aura from experienced users of Nen.

Conjured objects can have special abilities imbued into them. For example, the Phantom Troupe bandit, Shizuku, is able to conjure a vacuum cleaner that can infinitely suck up objects, but with the condition that it can't suck up living things and things made up of Nen. Similar to Manipulation, Conjuration abilities tend to be very specific, complex, and conditional. Conditions can be imbued into conjured objects to make them stronger. Kortopi, for example, is able to materialize a perfect copy of any non-living object that he touches. However, the copies of all objects generated will automatically disappear after 24 hours.