Somnium: Everyone dies alone

Lilith is a twenty-year old girl who is convinced to be mad and pretends every day just to seem "normal" in the eyes of people. A few hours before her birthday, she witnesses to the bloody death of her parents and finds herself cared by four brothers of which she had ignored the existence. Finally found the answer to her strange visions and follies, Lilith learns to live with her status as Nephilim - a being that is half angel and half demon and that must feed on human blood to survive. But when her life begins to be “normal”, here comes Gabriel, a sadistic and cruel angel, who will blow her mind.