A talented martial artist who can’t walk past a person in need unites with a probation officer to fight and prevent crime as a martial arts officer.

Min-soo is about to get married when his fiancée suddenly admits that she is allergic to dogs. Now the guy’s best friend, the golden retriever Rooney, needs a new family….

After waking up with mysterious wounds on his hands, a champion fighter finds himself in an otherworldly battle against evil forces that wreak havoc in the human world.