GoGo Characters
From Lie of Wiki
GoGo Characters are playable characters that can be unlocked for non-story content. These characters can usually be unlocked by finishing the character's side mission. GoGo characters also allow the player to dive into the daily life of a typical Caelite and any choices done within the character's side story will have no impact on the main story.
Unlike main playable characters, GoGo characters cannot have more than one style, are stuck to their current movelist, and are unable to summon Hi-Frames. They also share the same level cap as the main cast should the player chooses to play in True Mode. Other than these limitations, the player can customize their gear however they please.
List of GoGo Characters
(This list is not final)