One Off Ability (or simply One Off) is the special ability that IS can attain in 2nd Shift.

Reason for OccuranceEdit

  • As the IS and pilot gain more experience - maybe by getting to know each other better by spending more time together - the IS could optimize itself even further, eventually evolving to 2nd Shift.
  • The interesting part is that upon reaching the 2nd Form, some ISs begin to exhibit special abilities, one per IS which is a unique characteristic.


  1. No two ISs have the same abilities.
  2. Attempts made to artificially generate same One Off for multiple ISs in controlled environment were unsuccessful. It seems the One Off is decided purely by the combination of the pilot and the IS factors alone.
  3. Although One Off begins to manifest itself from 2nd Form, very few ISs have actually shown manifestation of One Off in reality, making this ability quite rare.

Known One Off AbilitiesEdit

Reiraku ByakuyaEdit

  • Byakushiki was the prototype for trying to recreate the One Off Ability that originated from Chifuyu's own Yukihira.
  • Special attribute is to negate the effect of anything consisting of energy (the kinds that does not have physical body.) Allows complete bypass of the opponent's IS shield. Since the attack would not be weakened by IS shield (which is the key defense in every IS) a single direct hit is often enough to force opposing IS to activate Absolute Barrier, effectively rendering its energy-depleted.
  • Activation of this ability requires vast amount of energy (which is much more than an IS can continuously supply) so in order to maintain the ability, additional energy has to be converted from its own shield.

Kenran ButouEdit

  • Enables Houki to recover the energy of Akatsubaki, and also recover energy of other IS's she comes in contact with. It is presumed that Tabane specifically chose this ability so Houki could act as the primary support for Ichika's Byakushiki, which usually suffers from high energy consumption rate.

Early Tempest Edit

  • Enables Alicia Josestof to create clones of herself and Tempesta using wind. This allows her to outnumber her opponent. So far, she can create two clones at once.

Yuunagi Touya Edit

  • Byakushiki new One Off Ability after it evolved into 3rd Shift.
  • It enables Ichika to forcibly re-format any IS into its default setting.
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