Ortho Siblings

Brother and sister chimera ants. They have features of aquatic animals, such as scaled legs and webbed feet. They were decapitated by Killua. Their nen ability worked in conjuction; the sister created a tag that when placed on someone, would link her brother's dart board to the target. The brother can then shoot the darts at the board and cause damage to the target according to where the darts hit the board. The tag cannot be removed until the target has died.