Velved Rheinkeimer

Velved WS Rheinkeimer (ベルベット・WS・ラインカイマー, Berubetto WS rainkaimā) used to work for the Werewolf Bureau, but after getting injured in battle she lost her heightened senses and the ability to dilute herself.

Plot
She made a deal with Zeodra to regain the ability to dilute her existence, so she could get revenge on the Werewolf Bureau. Her revenge fails and she is killed by Chain.