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.

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

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?

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.

Universal Century 0071. Changing their names to Édouard and Sayla, Casval and Artesia have begun new lives on Earth as the children of Teabolo Mass, but they are attacked by assassins dispatched by Kycilia.

Universal Century 0068. Casval and Artesia are the orphaned children of Deikun, who preached the reformation of humanity through advancement into outer space and independence from the Earth Federation government.

The One-Year War

Char becomes a hero of Zeon, thanks to his exploits in the Battle of Loum, earning a promotion to Lieutenant Commander and the nickname "Red Comet."

Deploying a Special Assault Regiment made up of mobile suits, the Zeon forces overwhelm the Federation fleet. Char achieves tremendous results, destroying five enemy warships. The Battle of Loum ends in victory for Zeon.

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.

Anguished by the realization that her brother Casval's survival means his lookalike Char is dead, Sayla now faces a further tragedy. Meanwhile, Lieutenant Char of the Zeon forces appears at Texas Colony in a red mobile suit.

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.

The Principality of Zeon forces advance after wiping out half of Earth's population by carrying out a colony drop. In response, the Earth Federation Forces mobilize their overwhelming fighting strength to regain the advantage.

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.

Universal Century 0079. Side 3, the space city furthest from the Earth, launches a war of independence agains the Eart Federation government under the name of the Principality of Zeon

A man who calls himself Twenty Faces commits a series of murders. His victims are all criminals who have escaped justice and have not atoned for their crimes. Before he kills, he posts a message on the Internet to explain who he’s going to kill and why.