Reunion is the seventeenth episode of the anime.
Tenma goes back to Frankfurt. He meets with Ayse's friend and tells her that Ayse has been killed, he also asks her to meet with the Turkish town leaders in order to warn them about The Baby's plans to set the Turkish district on fire.
The Baby invites two women for dinner at a high-rise building, but he is interrupted by Nina, who points a gun at him asking for the place where the fire originates.
The fires start at the Turkish district and Tenma helps the town people turning them off. Nina goes to an abandoned building where she finds Dieter and Otto. Otto, nevertheless, tells the factory was just a decoy and that the main fire would take place somewhere near the river.
Tenma helps treating the injured. Nina and Dieter rush into the abandoned factory by the river, and Otto goes to the Turkish district planning to steal the expensive rug.
Nina and Dieter arrive to the factory, where they find a skinhead who is about to start the main fire. Tenma finds Otto in the streets, who had just stole the expensive rug. Tenma asks Otto to take him to where Nina and Dieter are. Tenma and Otto arrive to the factory and Dieter uses the rug to turn off the fire.
The police arrive to the scene and Tenma, Dieter and Otto leave using a boat. The three visit the building where Johan has left a message that says that the monster inside of him is about to explode.
- Nina Fortner: "You should never kill anyone either, no matter what!"
- Kenzo Tenma: "Nina, promise me ! Don't shoot! You must not shoot people!"
- Johan Liebert: "The monster inside of me is about to explode!" (written on a water tower).