Yuri is in town all dressed up for a date when a dying agent from the 3WA (World, Welfare, and Works Agency) hands her a special card to give to headquarters. Yuri is reluctant to take it until some guys in blue uniforms arrive and chase her down. She passes the card to her reluctant partner Kei, but somehow the blue uniform guys grab it. Kei and Yuri go after the guys, but also have to evade them when the girls secure the card, and they end up having to go through some bad sections of town, leaving a wake of destruction along the way.

After spotting bigwig Waldess at his GCN corporation, Kei tries to confront him but the bodyguards apprehend her and toss her out. Frustrated, Kei has had enough, and resigns. Yuri is assigned to protect a neuroscientist, but runs into trouble as Lady Flair storms in to kill the scientist. Waldess takes a sabbatical to a cruiser ship on a planet's ocean full of deadly whirlpools. Kei pursues her but gets into trouble as Lady Flair is aboard the ship, and Yuri pursues to try to help out.

With Kaps's testimony, the GCN is being investigated. The guys that represent Lucifer decide that Waldess is too dangerous especially when he's still going after Siren, so they hire an assassin, who is none other than Lady Flair! Kei gets her gun repaired but it got confiscated by the 3WA. Meanwhile, Yuri gets a new ditzy partner named Lilly, and they have to help Unit 9 stake out Waldess at a spaceport, but trouble arises when other assassins make their moves against Waldess.