The title character is deposited at the side of the road by a little dog. Poo then wonders about the meaning of life & why he exists and decides to travel the world.
He meets some friends along the way, including a leaf and a clump of soil(!), before eventually meeting a dandelion who uses him as fertilizer.
The moral of the story - even the humblest were created by God for a reason.
It was created by the Korean's - a race that have interesting views on dog fouling and how to deal with the resulting mess. Remember Dog Shit Girl ?