My Lady (Sebastian Michaelis) [Kuroshitsuji]

Louise Aldhydde, the only survivor of the Aldhydde massacre wherein she met the creatures responsible for the death and fall of their clan. They're after her. And she, having thought one night that she was able to escape them, was captured, castigated and experimented on.

A horrendous past. It has engraved itself, taking her heart and driven her mad.

Seeking out for those who has inflicted such agony on her, she vowed to seek revenge. To seek out the red and golden eyed demons, as well as the purple eyed angel who ruined her. And while these creatures themselves were after her, she's not going to evade them.

She'll destroy them, even if it meant giving up herself to be eaten by darkness, she'll make sure of that.

But how long will she be able to keep this up if the demon she despised so much is the one who lurks in the darkness that will soon consume her?