Arc 4Victory and Reforms
Sarutobi Toru helped Konoha defeat its wartime opponents, then trained in Sage Mode and began preparing Tsunade and the Uzumaki Clan for greater roles in the village. The arc ended with Toru and Sarutobi Hiruzen planning Academy reforms and deciding to strengthen Kushina and Kanao with the Perfect Potion.
- Sarutobi Toru led an attack on the Cloud Shinobi camp, captured Karina, and crippled the Cloud Shinobi supply lines.
- Sarutobi Toru defeated Gyuki and the Third Raikage, while Tsunade defeated Rōshi and Iwagakure surrendered, and the Mist Ninja later withdrew and the war ended with Konoha victorious.
- After Konoha learned that Nawaki had died, Tsunade grieved, while Uchiha Madara revived Nawaki with life-filled medicine and found him unable to speak or remember anything.
- Sarutobi Toru mastered Sage Mode at Shikkotsu Forest, then persuaded Tsunade to communicate and cooperate with the Nine-Tails.
- Sarutobi Toru introduced Kushina and Kanao to Tsunade, who took them as apprentices, and arranged for the Uzumaki Clan to join Konoha’s Medical Department.
- Sarutobi Toru studied White Zetsu, discovered that his Hormone ability could manipulate plant hormones, and repeatedly transformed and regrew White Zetsu to test its abilities.
- Sarutobi Hiruzen auctioned tariff-exemption rights for five billion ryo, and Sarutobi Toru proposed an Elite Improvement Class and temporary Degraded Potions for Academy students.
- Sarutobi Hiruzen agreed to promote the Academy reforms and offer Elite Class students Perfect Potion injections, while Sarutobi Toru planned to give the potion to Kushina and Kanao.