Battle Fucker in Monte Carlo.
The Justice Kaiser is first met after Luka gets information from the Monte Carlo Informants Guild. As the group is leaving town, they see a young man being attacked by a succubus in an alley. Before Luka can do anything, The Justice Kaiser swoops in and defeats the attacker. She invites Luka back to her house if he wishes to become an ally to justice. If Luka follows her, she gives him a quest.
Upon completion of her quest, she becomes a Battle Fucker using her real name, Juska. Juska does 708 damage and gives Burning Soul on victory.
"A burning soul and spirit! It is the flame, the fire, of justice!"
- The Justice Kaiser is the only battle fucker in Part 1 who has a different companion name.
- Although not outright stated she is heavily implied to be Elka's daughter. There is a photograph of Elka in his youth (complete with red hair) inside Juska's home, and a brief exchange of dialogue occurs between the two if Luka brings her to the Elka Company headquarters and talks to Elka himself.