As a child, Sasuke craved attention from his older brother Itachi. Sasuke and Itachi have a chance to spend some time alone when their parents are away. Meanwhile, Sakura is very shy and tends to spend her free time by herself. One day, her new friend Ino gives her a present.

Instead of returning to the Hidden Leaf, Sasuke sets out with Chino and Nowaki to investigate the cause of the exploding humans.