This is a slap stick comedy of an Inukami Tamer, Keita and an Inukami, Youko. Keita is a man of worldly passions, and he likes money and girls very much. On the other hand, Youko likes to destroy things and is very jealous.
What could be more fun than learning your colors with huge, awesome dump trucks and powerful diggers? These trucks all have lots of special items in their cargo that all have unique and fun colors to enjoy.