After making their preparations, Kazemori Masaki led the village's newly organized ninja force and three ninja from the Uzumaki Clan to the battlefield. Konoha Shinobi Village's Medical Camp had advanced farther forward, into the Land of Rice Fields. Thanks to their alliance, Konoha Shinobi Village did not have to worry about clashes with the country's soldiers. On the contrary, they received favorable treatment and could purchase provisions locally at reasonable prices.
Following Kazemori Masaki's advice, Tobirama strictly regulated his troops' conduct. Unlike Kinkaku, Ginkaku, and the others from the Land of Lightning, they did not openly plunder the locals, and they fought fiercely in battle. Though they were not fighting for the Land of Rice Fields, the country still held Konoha Ninja Village's conduct in high regard.
As they approached the Medical Camp, Hiruzen Sarutobi came out with a group to welcome Kazemori Masaki. The two fellow disciples, who had not seen each other in quite some time, exchanged warm greetings and talked as they made their way into the Medical Camp.
Only upon returning to the front did Kazemori Masaki learn of certain recent developments. While still in Konoha Ninja Village, he had learned that Koharu and En had been promoted to Jonin. During his journey with the troops, Danzo and Hiruzen had also become Jonin. That meant Torifu was the only one among their fellow disciples who had yet to reach that rank.
Yet Kazemori Masaki could not congratulate Hiruzen as Hiruzen and the others had once congratulated him. The reason Hiruzen had been on the verge of becoming a Jonin was that his father, Sasuke Sarutobi, had died.
As a ninja capable of using all five chakra natures, Sasuke Sarutobi had been renowned even during the Warring States Period, and his achievements in the fighting against Kumogakure