"...I think I'm just going to kill you all."
The assailant, also known as the pursuer, is a member of the organization known as Idea. Specializing in martial arts, she cares for nothing other than brutally and mercilessly crushing their foes.
Her true name is Guinevere.
Possibly the most cold-hearted character in the game, she acts emotionless and rather robotic, initially targeting her enemies to truly destroy them.
- She is based on the literary character Guinevere, from Arthurian Legend.
- Assailant makes an appearance alongside the other characters of Code: Realize in the Idea Factory otome card game Sephirot ~World Tree of Time~ , which contains characters exclusively from otome games published by the company Otomate.