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Scanlators/Credits: Aku Tenshi
Link: 
IRC: #aku-tenshi@irc.irchighway.net
Summary: While being dared to ring the bell of an old abandoned church, Kanata fell down through the ground that had collasped. He finda himself in a room with a large, cross-shaped coffin. Inside the coffin lies a boy dressed in old-fashioned clothes; however, before Kanata could do anything else, the boy awakens and kills Kanata by accident. For some reason, Kanata's soul is trapped within the coffin. Kanata wakes up thinking that it may all be a dream, only to find a small cross in his hand. He meets the boy again later on and it just so happens that the boy is a vampire, and what's this? They are both bound to each other!? If one dies, the other dies too. What could happen next?
[summary from Aku Tenshi]
Volume 1

Volume 2