Blood-Bound

Kyou has been carefully hidden from the eyes and attention of Karlheinz since infancy, but when he finally finds her, he mercilessly throws her into the nest of his six biological sons and forces her to co-habitate with them. Kyou becomes embroiled in the Karl's quest for "Eve" and creation of a new race, and similarly so in her relations with the six brothers as they go mad in their competition to become "Adam". And so, as the brothers sate their thirst with Yui's presence in the Sakamaki mansion Kyou awakens them to a different kind of demon desire.