From Chibi Manga:
A girl who dreams of fated meetings – Kizuna. The one she met in a suspicious western-style house, the “Yûrei Library”, was a good-looking but demon-like young man – Rû. On top of that, Rû has an unbelievable secret…! A cursed love hidden in the masterpiece “Romeo and Juliet”. Searching for a new ending, the gears of fate have started to move–!?