Black Blood Brothers

Ten years after a vampire war in Hong Kong, Jirou Mochizuki, the swordsman known as the Silver Blade, returns to Japan with his younger brother Kotarou. The two aim to reach the Special Zone, a city sealed behind a barrier that no vampire can enter uninvited, while survivors of the enemy Kowloon Children try to slip inside. Along the way they cross paths with Mimiko Katsuragi, a human 'compromiser' who brokers dealings between humans and vampires.