The story takes place in a reorganized family. The elder brother is mature and stable, with excellent morals and academics. He has been outstanding since he was a child. He has never done anything out of the ordinary, but he did not expect that he would become a big hit once he did it. Even he was shocked!
The younger brother is a little white sheep. He is cute and well-behaved but also reveals a little bit of mischief. He is simple-minded and has never been on guard against his older brother. He never thought that the older brother he always admired would one day turn into a big bad wolf who wanted to eat him!