Mass murderers may not have much by way of careeer skills, but Kuroko Koumori seems to have landed her dream job as a hitwoman for the Tokyo police! A license to kill other killers? That's some serious job satisfaction, right there!

Higaki, of the Sakura Pruning Group, was forged in the fires of war and fueled by a passion for revolution. Now an old man, he's engaged in a life-and-death battle with Kuroko in order to achieve his ultimate goal. But is Higaki animated by a desire to conquer Japan or by something more personal? The secrets of the Sakura Pruning Group reach far and wide-even right into Hinako's past!

A mysterious killer has left a trail of dead swordsmen in their wake, and the grisly corpses hint at a fiend possessed. A chance to confront the culprit presents itself, but Kuroko finds herself in unfamiliar territory-when, for the first time, an opponent completely outclasses her in combat! In order to win (or even survive) against this unparalleled swordsman, Kuroko's going to need an ace up her sleeve, and her answer is...movie magic?!

After a chemical weapon attack on the police department, Kuroko tracks down the extremist group responsible and goes on the offensive! Will she be able to bring the organization's members to justice, or will this case end up unsolved?

The identity of Comedy Writer continues to confound the police, but Kuroko believes she's got her man! After thwarting his "performance," she corners him to deliver an ultimatum! Could this aggressive approach be a bridge too far? Meanwhile, another suspicious individual is out and about, and Hinako's not going to let him get away! But there's no telling what he'll do to keep his secret hidden from prying eyes...

As a former mass murderer, Kuroko Koumori knows a thing or two about how killers think. A string of deaths points straight to an ex-con-turned-business mogul who used to skin the faces off his victims. But could it be a red herring? As chaos unfolds at the local amusement park, it might just be Kuroko's partner, Hinako, who's closest to the truth!

Now under Kuroko's care, Rinko has just transferred to Hinako's school, and things are already off to a bad start! A sudden explosion rocks the school, and Kuroko is called in to catch the one responsible for the attack. But before she can get started, the culprit turns herself in voluntarily! Is this girl really the bomber, or is there something even more sinister behind the scenes...?