The saga commences as a Mist Ninja spot a colossal iceberg in the distance, leading them to figures near the Yuki Clan Area. A battle ensues, resulting in the discovery of a torn-up note. Pursuing clues, the Shinobi apprehend a bandit, obtaining a missing piece and setting the stage for a mysterious journey.

The collected notes form a blood-soaked journal, the “Journal of The Sage of Ice.” While most entries detail Toshiro's travels, the final page contains a cryptic message leading to landmarks scattered across the Land of Water and beyond.

Realizing bandits are also on the trail, Mist Shinobi dispatch squads to identified landmarks. Fierce battles ensue, resulting in the retrieval of messages. Back in the Village, the deciphering process begins, unveiling the next step in the Falling Icicle Chronicle.

The Mist Shinobi, including the Kage, swiftly move to the next area. There, they discover a burnt skeleton, identified by intact clothes as Toshiro's. Enraged, the Mizukage destroys the area with his presence and rage. Calming down at the sight of a distant paper, he finds a blood-written message: “DON'T TRUST …KI-.” Ambushed by masked men, the Shinobi and the Kage are trapped. While some leave for further plans, a few remain to ensure the Mist Village's demise.

The Mizukage channels his rage, leading his villagers to slaughter the masked men and bury them in icy graves. After capturing and interrogating one, they discover the attackers as Followers of Ash. The commander wields a forbidden power acquired from Toshiro's corpse, further deepening the mystery of the Falling Icicle Chronicle.