Arc 24Science and New Beginnings
Senju Chen expanded Konoha’s medical and technological programs while helping Yakumo master her dangerous power and reuniting Kakashi with Sakumo. As Naruto and Sasuke began school and the Public Security elites trained with new tools, the arc left Kakashi and Sakumo about to face Shisui and Itachi in a team match.
- Senju Chen offered Konoha access to his limb-regeneration technology and established a Medical Department, drawing disabled villagers and eager matchmakers to the Senju residence.
- Senju Chen visited Kurama Yakumo with Kurenai Yuhi and Anko, discovered her immense mental power, and helped her defeat Ido after Yakumo’s genjutsu overwhelmed the Kurama compound.
- Senju Chen recruited Yakumo as a special observer and sent Public Security elites to his underground base for advanced training, where Kakashi reunited with Hatake Sakumo.
- The Orochimarus guided the trainees through Tailed Beast cell transplants, and the survivors awoke with nearly twice their former power.
- Naruto Uzumaki and Sasuke Uchiha started at the Ninja Academy, where they challenged each other to compete and Naruto stood by Sasuke after Iruka reprimanded them.
- Senju Chen gave Yakumo a private studio and promised she could soon leave her room, while Hatake Sakumo trained Kakashi to fight with basic sword techniques and taijutsu.
- The Public Security trainees tested Scientific Ninja Tools, and two months later Sakumo and Kakashi prepared to battle Shisui Uchiha and Itachi Uchiha in a team match.