After Robin left Batman and went to Blüdhaven, He and Harley Quinn became close. Soon, it escalated to Harley leaving Gotham during one of her puddin's heist's. Batman doesn't approve, and leave to try to get Harley away from Blüdhaven.

Dick Grayson and Harleen Quinzel are both tired of their current situations, they need a change. Something new. Someone new.