Blood Lad: Wagahai wa Neko de wa Nai [English]

On their way to demon world Acropolis, Fuyumi has to consume Staz's blood once again to avoid disappearing and starts to become addicted to it. Meanwhile, a misguided vampire hunter group, calling themselves Team Fearless, targets Staz. While the vampire initially fights against them on equal footing, mid-combat he loses his ability to heal himself after being hit by a weapon made of silver... and Fuyumi is kidnapped. Ignoring his weakened state, Staz heads for Team Fearless' headquarters.