Mahou Shoujo Madoka Magica character.
One of Oktavia Von Seckendorff's familiars, the other being Holger (Madoka Magica). Klarissas appear as little dolls dancing to Holger's orchestra.
Greatly resembles Shizuki Hitomi, which may hint to the direction in which Miki Sayaka's grief and anger ran in that alternate timeline.