Ch. 41Distinguishing Blood Types
Muzan developed a machine that identified blood types, allowing Konoha to sort blood for transfusions and reduce battlefield deaths. Sakumo sent Muzan and the disassembled machine secretly to Konoha, where Shan Jian Helai presented it to the Third Hokage.
- Muzan treated critically ill patients and told Shan Jian Helai to arrange blood and bandages while he developed a blood-type identification machine.
- Muzan built a working machine that identified blood and sorted it into storage units, and Shan Jian Helai reported its usefulness to Sakumo.
- Sakumo ordered the machine and Muzan sent secretly to Konoha, keeping the mission from the escort squad and the camp.
- Anko and Mari assumed Muzan was absorbed in experiments, while Muzan and the escort reached Konoha and drew the attention of its Anbu.
- Shan Jian Helai showed the machine's components to the Third Hokage and explained that it could reduce deaths from blood loss.