Black Blood Brothers

Vampire Jirou and his brother Kotarou set sail to Yokohama. Kotarou being a restless kid starts wondering around the boat and stumbles upon a fight between the suppression team, and the vampires. Jirou comes to stop the racket, but a grenade knocked Kotarou off board. Jirou dives after him but due to his blood, water injures him.

Ordinarily, humans wont evolve unless they drink the blood of a black blood. However, they can change humans by sucking their blood and turn theam into the same bloodline as the black blood. If they ignore that existance, the world will be ruined.

The place where Mimi works at finds out about her assisting Jirou, so she leaves and tries to find Jirou and Katarou a place to stay at. But during this they get attacked by some vampires. Will Jirou be able to beat them and protect Katarou and Mimi? Or will he perish in the attempt?

After the explosion, Jirou leaves to take revenge. But Ogius seems to be a kowloon child now. What will happen to Jirou? Will he survive? Will he win the battle?

Katarou and Zelman go off looking for Mimiko, meanwhile Mimiko goes off to the place of the eleventh yard expert. And Jirou is trying to find out what Cassa is doing in the special zone. Can Katarou and Zelman find Mimiko? Can Mimiko find out about this eleventh yard? And can Jirou find out what Cassa wants with the special zone?

Sei was put down the barrier protecting the special zone and is helping to destroy the kowloon children. Jirou meets up with Katarou and Mimiko, and is able to convince him. But right there Walkerman comes and fights Jirou, but Jirou is weak now. Will he win the fight? Will he stay in the special zone?