These are packets filled with blood. As schiffs need to consume blood for survival, Red Shield provides them with their necessary food. Kai uses to take the blood packs and give them to Moses near the Metropolitan Art Museum. After Moses and Karman commits suicide, Lulu, the only live schiff, stays with Kai and others. She is regularly supplied with the blood packs. Sometimes blood is filled in juice packs to Lulu to avoid suspection.