|Krystal (real name unknown)|
|Hair||Black with red streaks|
Her group also includes Jericho and previously included Azrael before he died. Amy Chen meets her while riding the Brimstone getaway van and joins them in V9C3. Although her clothing and personality come off as somewhat suggestive, she is shown to have the prestigious intelligence shared amongst her group. She appeared in the interlude set inbetween the tenth and eleventh volumes (Far Away From Home). However, Amy left the group after Volume 10.
She was saddened and emotionally ridden by Azrael's death in V14C2.