Hunter

A green-haired boy in a fighting stance unleashes a burst of energy, followed by a scene of two boys standing in a forest, then sitting at desks in a classroom, a close-up of a white-haired boy's face, a blurry shot of a boy falling, and finally a boy with a bandana running forward. The sequence depicts a young boy with spiky green hair and a boy with spiky white hair in various settings including a forest, a classroom, and action sequences.