Arc 4Medicine and Intrigue
Yubi returned from the coastal mission and used his new position to pursue medical reform and influence Sunagakure’s politics. While Sasori helped engineer a purge of officials, Yubi developed medicines and left Arai to decide whether he could be trusted.
- Yubi led Pakura, Yashamaru, Sakamoto, and Fukushima Taki through months of fighting Kirigakure infiltrators, then defeated Yagura’s attack and returned to Sunagakure.
- Yubi asked the Third Kazekage for a place on the Council of Advisors and began investigating Sunagakure’s economic troubles while taking over the hospital.
- Yubi recruited Fukushima Oka and Nohara Murashi as allies, established a medicinal research department, and borrowed money to support his projects.
- Yubi traveled abroad to earn money through bounty work, killed Uchiyama and several Takigakure ninja, and continued monitoring Sunagakure’s political tensions.
- The Third Kazekage’s support for Rasa intensified conflict with Murashi and Fukushima Oka, while Sasori secretly killed officials under Yubi’s plan and made the deaths appear connected to factional disputes.
- Yubi completed his research and drug testing, then returned to begin mass production and distribution of medicines.
- Arai followed Sasori to meet Yubi and began suspecting that Yubi had shaped the political turmoil, but he found no evidence.
- Yubi showed Arai the new medicines and asked whether he could trust him.