Inspektorin Akanes Mitarbeiter, der scharfsinnige Vollstrecker Kogami, kommt der Täterin auf die Spur. Doch diese ist selbst auch nur Opfer…
With his profiling skills, Kogami determines that the girls' school killer isn't the same murderer from the unsolved case years ago; he explains that the recent murders lack "originality" and pointed social commentary of the previous killings. When he and Tsunemori realize the culprit is one of the students, they locate Rikako - who escapes when one of teachers stops Kogami from executing her. As the Enforcers try to locate her secret routes and hiding places, Rikako flees - but not before everyone discovers her latest creation. Makishima calls Rikako to tell her that she's a disappointment and has one of his colleagues dispose her. In the meantime, Kogami picks up a damaged audio file which was deliberately left by Makishima. Due to Rikako's failure, Makishima develops an interest in Kogami.
Kogami découvre que le tueur d'étudiantes n'est pas le même assassin que celui de l'affaire non résolue vieille de plusieurs années, mais bien l'un des étudiants.
Kogami stabilisce che l'assassino delle studentesse non è lo stesso di un vecchio caso irrisolto, bensì è uno degli studenti.
一連の事件の背後に「マキシマ」の存在があると確信する狡噛。刑事の嗅覚で、女子生徒殺害事件の犯人を追い詰める狡噛達だったが、その背後では新たな凶悪事件が動き出そうとしていた。
코가미는 몰래 수사 자료를 넘겨받으면서 이상한 점을 깨닫는다. 그것은 이번 범인이 토마와 달리 예술성만을 추구할 뿐 전시장소에 풍자가 없다는 점. 그렇게 코가미와 츠네모리는 범인의 특징을 좁혀나가서 용의자를 찾아내기에 이르는데...
Kogami concluye que el asesino de estudiantes no es el mismo asesino del antiguo caso no resuelto, sino que es uno de sus aprendices.
经过一连串事件的线索调查，狡啮确认了一名叫做槙岛的男子的存在。是刑事的嗅觉使得狡啮去追查这起女学生被杀系列事件的犯人。但在其背后，另一个凶恶事件正在蠢蠢欲动……
