Fa Jin ( (はっ) (けい) Hakkei?) was the Quirk used by the third user of One For All and later inherited by Izuku Midoriya.[1]


This Quirk allows the user to build up kinetic energy by repeating regular motions and store it for later use. When the user chooses to release the energy, they gain an explosive burst of speed and power.

The user can choose to only use some of the stored up energy at a time, allowing them to achieve multiple bursts of speed and power.[2]


Deku uses this Quirk while fighting Lady Nagant. He uses Smokescreen to hinder her vision so he can jump around from building to building, gathering kinetic energy before jumping out of a skyscraper and grabbing her.

Super Moves

Izuku using Faux 100%.png Faux 100 Percent ( () () 100% (パーセント) Giji 100 Pāsento?): Izuku uses Fa Jin to move at speeds comparable to One For All at 100%.[2]
Faux 100 Percent: Manchester Smash ( () () 100% (パーセント) マンチェスタースマッシュ Giji 100 Pāsento Manchesutā Sumasshu?): Izuku delivers a Manchester Smash using Fa Jin.[2] Faux 100 Percent Manchester Smash.png


External links

  • Fa jin - Wikipedia article about the Chinese martial art technique this Quirk is named after.


  1. My Hero Academia Manga: Chapter 313.
  2. 2.0 2.1 2.2 My Hero Academia Manga: Chapter 315.

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