Akechi’s chaotic day starts when Kobayashi finds an abandoned kitten at the front door of the Akechi Detective Agency. Kobayashi wants to keep the kitten, but Akechi does not approve. Then another incident occurs. This time, Shadow-Man is involved.

In an interrogation room, Twenty Faces reveals what made him decide to operate outside of the law to punish criminals.

As Kagami predicted, more Twenty Faces have been appearing, ten in the previous month, and now in the current month, the fourth one has just appeared. Akechi and Nakamura head to Panorama Island to inspect the latest crime scene.

Joined by Kobayashi and Hashiba, Akechi solves the crime committed in the exhibition hall on Panorama Island. After coming back from the island, when Kobayashi and Hashiba stop by the office as usual, Akechi starts telling them about his past.

Akechi spends his days and nights trying to figure out the formula that he and Namikoshi created in order to put an end to the Twenty Faces case. Being very curious about the formula, Kobayashi skips school to help Akechi with his work.

The man pulling the strings of the latest Twenty Faces crime was Namikoshi, who everyone thought died three years ago. He starts talking about his junior high school days and how he came to start working on the formula with Akechi.

Namikoshi is trying to change the world using the power of Twenty Faces. Those who are dissatisfied with society gathered to support Namikoshi and his law. What is Namikoshi trying to do? Can Akechi get there before it’s too late?

One morning, a junior-high student, Kobayashi, wakes up and finds himself in his classroom with his homeroom teacher’s body. In his hand is a murder weapon. A high-school detective, Akechi, is called in to assist the police to solve the case.

Inferno is flourishing under McCunnen’s direction, and she’s gaining influence over the criminal underground. She’s not the only one moving up in the world - there’s a new Phantom in town.

In the aftermath of the botched drug deal, Isaac questions why Zwei is compelled to shelter the only witness. To keep Cal safe, the Phantom digs a hole that may prove difficult to escape.

Claudia’s drug deal ends before it begins when the buyers turn up murdered. Zwei visits the scene to look for clues, but instead finds young Cal, a girl who claims to know the party responsible for the massacre.

After executing a public assassination at a busy shopping mall, Ein and Zwei face hard questions about what they’ve become in the hands of Inferno.

With his life on the line, Zwei accepts his fate and begins his assassin training under Ein and learns more about his new masters - Inferno.

Inferno splinters after an explosion of murderous betrayal, and Zwei must choose between escaping his new reality or protecting wounded Ein. Either way, the puppets are cutting their strings.

Inferno sends Ein and Zwei on an incredibly orchestrated assassination spree. If the bloodbath goes as planned, the balance of power in the West Coast criminal underground will shift dramatically.

Zwei thinks Ein is the only person who understands his pain, but there’s another girl hurting just as much - and she’s all alone in the violent world that the Phantom left behind.