While Kaiser Ryo is doing well in American Duel Academia, his little brother, Marufuji Sho is in trouble. Professor Chronos finds 0 score on Sho's test, so he plans to expel from the school. Sho has to approach in the duel against Judai. If he wins, he can stay at Duel Academia. However, if he loses, he will be kicked out from the school. Judai's pushed into the duel by tough condition. If he loses, his deck will be confiscated. Both of them oppose against each other seriously in the decisive battle. Finally, Sho activates a card that equips an armor on himself and destroys Judai's E-Hero Airman abruptly.