Zhou Yun knows that servant Yin Jun, is the Zhou family's most loyal dog. Then, after his death and upon opening his eyes, he found out that not only was he the captive of the step-son who took his position as son of the first wife, he was actually reborn into the body of a good-for-nothing son! A loyal dog becomes mad????

Original webtoon: https://ac.qq.com/Comic/comicInfo/id/649024