A girl whose boyfriend passed away suddenly met a man who looked like her boyfriend. This man was both good and evil. He wanted to get close to her but was alienating her at the same time. It turned out that he was a pet dog that she had raised when she was young. The girl abandoned it for various reasons. In order to repay the kindness of the girl, the dog turned into a dog demon and looked for the girl. Unexpectedly, his physical body was the girl's boyfriend. What kind of story happened between them? Please look forward to "The Dog Demon Lord"