Hatsu

Hatsu (發, Hatsu) is one of the four basic Four Major Principles of the Shingen-Ryu school of Kung-fu Nen techniques.

Description
Hatsu (發, Release; Act) is the release or transmission of one's aura so it can be projected to carry out a certain function. In essence, Hatsu is one's personal expression of Nen that creates a special and unique paranormal ability (colloquially called a Nen Ability). A good Hatsu should reflect a person's own character; one can never truly master Nen if they only copy other people's abilities.