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First introduced in Who is Real, alternate Operators, colloquially referred to as alters, are an alternative version of certain Operators, which could either have superior performance than the original Operator or completely different properties altogether.

All alter Operators are subject to the following mechanics:

  1. Both the original Operator and their alter share the same Trust but have their own potential, skill upgrades and Mastery training, talent, and base skills.
  2. Both the original Operator and their alter have their own outfits and dialogues.
    • However, both are available separately as the player's Assistant.
  3. Both the original Operator and their alter cannot be present in a squad or the RIIC at the same time.
    • If either is present in the squad, the other cannot be picked up as a Support Unit, and assigning either to the same squad as the other will cause the former to replace the latter.
    • If either is assigned to a facility while the other is also in a facility, the other version will be removed from its shift. This also affects the Dormitory, meaning an Operator cannot rest while its alternate version is working.

Contrary to one might expect, it is not required to have the original Operator in the player's roster first before their alter can be added as well. However, having the original Operator alongside their alter will unlock Alternate Operator Missions which requires the player to build the original and alter Operator, and awards resources which partially refunds the process. It is thus highly advised to build both the original and alter Operator, even if they ended up unused, should the player manage to obtain both.

As of July 5, 2022, there are eight alter Operators:

Original Alter Release CN Global TW
Who is Real Tick.png Tick.png Tick.png
Under Tides Tick.png Tick.png Tick.png
Dossoles Holiday Tick.png Tick.png Tick.png
Near Light Tick.png Tick.png Tick.png
Invitation to Wine Tick.png Tick.png Cross.png
Stultifera Navis Tick.png Cross.png Cross.png
Lingering Echoes Tick.png Cross.png Cross.png
Dorothy's Vision Tick.png Cross.png Cross.png