In a dog world, there is a dog named happiness. It is an ordinary dog. You can see across the street that happiness doge (hidoge) is treated unfairly by others living at the bottom of the dog community. Despite such unfair treatment, hidoge not only didn't give up, but also had a strong sense of justice in his heart. Although hidoge is looking for ways to solve the problem of hunger, it also adheres to its responsibility as a just partner. Later, hidoge was adopted by another mysterious dog. He saw the beauty of hidoge's heart. The mysterious dog taught hidoge the art of self-defense, which is used to protect others. So hidoge began his journey to help his comrades who parted ways at that time.