Kachaku is a dog who lives in Musashino, Tokyo. He has a strong sense of justice but is weak in fighting. One day, the owner decided to move to Kyushu, and I got on the truck with Kacchaku, but unfortunately, I fell off the truck on the way and was left behind. I desperately chase the truck, but I can't catch up no matter how much I run. From here, Kacchaku's long journey to the owner who moved to Kyushu begins!