A humanoid Gear and the adoptive child of Kilff Undersn. They were once under the control of Justice and sought the annihilation of humanity, though since breaking free from her will, they have tried to atone for their actions.

*Note, Guilty Gear XX Accent Core Plus R refers to Testament using He/Him pronouns, despite the character nowadays using They/Them pronouns aligned with their non-binary/agender identity. For the sake of the dub, we will be using He/Him pronouns in spoken dialogue as they appear, but discussion involving the character will gender them properly-no exceptions. That being said, anybody of any gender identity is welcomed to audition for Testament, with a preference towards Non-Binary or other LGBT+ actors.