Who is Jack the Ripper? Sio gets let in on the secret as Operation Stone Forest comes to an end. And then?

Jack and Geronimo make a bet; Hunter has to learn to fight however he can. Meanwhile, Nobunagun faces a new threat.

Will Nobunagun's plan to capture the Evolutionary Invasion Object tunnel and destroy the original cells work? Nine E-gene holders begin Dogoo's most important operation yet.

As the plan to deal with the Objects in the tunnel takes shape, the commander remembers the ups and downs of her extra-long life.

Evolutionary Invasion Objects suddenly show up during Kaoru's visit to Sio, who is convalescing in a hospital in Japan.

The First and Second Platoons have to team up, after one of Vidocq's hypotheses reveals the biggest threat yet.

When a famed sunken battleship of the Japanese Imperial Navy starts wreaking havoc near the Panama Canal, Domoo realizes it's due to Evolutionary Invasion Objects, and sends in the Second Platoon.

Gaudi, Cyx, and Geronimo of the First Platoon crash-land on a snowy mountain. By coincidence, they come across a research outpost where something has gone horribly wrong...

Sio gets assigned to the same platoon as Jack and is reunited with Gandhi, Newton, and Galileo. The team is tasked with seizing Invasion Object brain tissue for study.

Sio and Jack have to work together to take out an Evolutionary Invasion Object inside a hurricane.

Sio starts intensive training at the Dogoo facility with war photographer Robert Capa. She manages to make some friends on base, but the reality of everyone's situation there is harsh.

The incident in Taiwan draws to a close, and Sio gets a chance to have a heart-to-heart with recovering Asao before deciding whether she will join the monster-fighting team or not.

Weapon otaku Ogura Sio is on a school trip to Taiwan when she and her classmates get caught up in an Evolutionary Invasion Object attack, not that she has any idea what is going on. And who is the guy with the knives?