Ichiro Hanada is a hyperactive little boy who lives with his parents, sister, and grandfather in a rural town. He is always up to some kind of mischief, often teasing his sister or making rude comments to others. Consequently, his mother constantly scolds him, and even the neighbours express disturbance from time to time on how rowdy he can be. One day, after pulling a terrible prank, Ichiro sprints onto the streets...