Orphaned in an earthquake, Sorath is taken in by Baron Kamichika, the lord of "Blood Blossom Manor." There, he pledges eternal friendship with Garan, the Baron's heir, and Kiyora, Garan's fiancee. But their friendship turns grisly by events none of them could foresee. The tender feelings each secretly harbors, the machinations of Baron Kamichika, and his strange and seductive female companion, and a fateful encounter with a young girl with bizarre powers...all draw them to the Walpurgis Night and the nightmare's climax!

Volume 1 :Imperial capital arc (chapters 1-4) -- volume 2 : Imperial capital arc (chapter 5) -- volume 3 : Modern day arc (chapters 4-7)-- -- volume 4 : Modern day arc (chapters 8-11) -- volume 5 : Modern day arc (chapters 12-15) -- volume 6 : Modern day arc (chapters 16-18 + final chapter).