Damian Jr. is Damian Wayne and Dick Grayson's son due to the DNA of both Damian and Dick. Damian is also the Grandson of Bruce. Damian trains him as a Red Ronin instead of Robin. Soon as he was done with training he made enemies with The Joker. He soon becomes a Vilain as when he got Joker in Arkham he decided to do work as a Villain, known as The Dark Robin.