On

{{Hunterpedia:Item
|image = [[File:Jed releasing his aura.png|250px|Jed releasing On]]
|name = On
|kanji = {{Ruby|怨|オン}}
|romaji = On
|classification = Technique for Use/Control of Energy
|ability = Enables [[Nen]]-like powers
|owned by = [[Jed]] [the medium to acquire it]
|used by = * Jed
* [[Shura]]
* [[Rengoku]]
* [[Gaki]]
* [[Gon Freecss]]
|anime debut = [[Hunter × Hunter: The Last Mission|The Last Mission]]}}
'''On''' ({{Ruby|怨|オン}}, ''On''; "Malice") is one of the defining features of the movie [[Hunter × Hunter: The Last Mission]].<ref group="note">On, exclusively present in The Last Mission movie, is not considered a part of the [[Hunter × Hunter]] canon.</ref> It is the opposite of [[Nen]]. Instead of utilizing life energy, the aura from On is derived from hatred and can be considered "death energy." On grants one immense strength, with each user being able to utilize abilities similar to Nen at 100% efficiency. Unlike Nen, this aura is said to be the stronger of the two and has no categories; meaning, one who masters On has the ability of an [[Nen#Enhancement|Enhancer]], [[Nen#Transmutation|Transmuter]], [[Nen#Conjuration|Conjurer]], [[Nen#Emission|Emitter]], [[Nen#Manipulation|Manipulator]], and [[Nen#Specialization|Specialist]]. It can be used after having contact with [[Jed]]'s blood and making a contract to obtain On. However, the use of On will kill the user after the user breaks its contract (or, most likely, fails the contract). Jed, [[Gaki]], [[Shura]], [[Rengoku]], and [[Gon Freecss|Gon]] are all On users in the movie.<ref name="LastMission">Hunter × Hunter: The Last Mission</ref>

==Trivia==
* The ''kanji'' used for On ([[wiktionary:怨#Japanese|怨]]) can literally mean "grudge", "resentment", or "jealous".
* The ''kanji'' used for "On" is the same superimposed onto Gon and [[Killua Zoldyck|Killua]] the first time they felt [[Neferpitou]]'s aura.<ref>Hunter × Hunter - Volume 19, Chapter 198</ref>
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==References==
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