Ch. 21I, Hu Hansan, am back again!
Itō Yuying secretly used a Senzu Bean to recover from his injuries, then revealed the beans and his Ki to Tobirama Senju, Sarutobi Hiruzen, and Shimura Danzō. Tobirama wondered whether Ki was a form of Senjutsu as Yuying explained that a cat sage named Korin had taught him.
- Itō Yuying ate a Senzu Bean in the hospital and rapidly healed while Sarutobi Hiruzen and Shimura Danzō watched over him.
- The doctor mistook Itō Yuying's complete recovery for a final rally before death, so Yuying blasted off his bandages, performed flips, and announced that he was back.
- Itō Yuying thanked Sarutobi Hiruzen and Shimura Danzō, asked the doctor to pass a message to the bowl-cut kid in the green bodysuit, and flew with the two senior brothers to the Hokage Building.
- Tobirama Senju asked Itō Yuying to explain his recovery, and Yuying revealed that he had beans that could restore the body and that a cat sage named Korin had taught him Ki.
- Tobirama Senju considered whether Ki might be a kind of Senjutsu after Itō Yuying said his parents had received the beans from Korin in a hidden realm.