Sei (Burst Angel)

She is the kind leader of the group who is the one that hires Jo and Meg to become members of Bailan. She wears a long blue jacket and has her black hair in a bun. Sei's grandfather runs Bailan and comes from a very powerful Chinese family. Sei was born and raised as a traditional Chinese girl and was trained in various ways of her clan/syndicate. After her grandfather stepped down as leader of the clan, their current clan members made a partnership with RAPT to preserve their clan. However, such actions not only disgusted Sei, she was also forced to do many things for RAPT in Bailan's name. She eventually rebelled against her own organization under the advice of her grandfather. Along with Jo she was caught in the explosion after destroying RAPT HQ and is presumably dead. however Burst Angel Infinity revealed that she survived the explosion.