You were on a mission with your older sister Yosano, both were attending to a possible victim of an attack that had the Port Mafia signature on it, what they did not expect was that the leader himself was responsible for such an act.

"Yosano, my angel of death, it's good to see you again and I see that you have company." To her surprise, Mori was still on the scene lurking.

Upon hearing her voice, Yosano instantly placed you behind her, protecting you from Mori.