A month had passed since the final duel between Ai and Playmaker took place. Even though it scarred him for not being able to save his partner, Yusaku chose to move forward and was currently super happy beside his new lover. Along the way, thanked to the help of Shoichi and the Knights of Hanoi, Roboppy was revived. However, there were holes in his memory, and he tent to melt function from time to time. But he was still the same cheerful helper robot the teen knew. That fact alone was more than enough for him.
Everyday, after all the chores was taken care of, Roboppy would log into Vrains and wandered around while waiting for his master to come home. Sometimes, he got challenged to a duel which he happily accepted. Then one day, when he was about to log out, he spotted something shiny beneath him. What he did next changed his life forever.