Yuuya and the others are pursued by unseen opponents in a densely wooded Field. These pursuers are the strongest of Sanders' students, the Battle Beasts!! Against the Battle Beasts who attack friend and foe alike, turning them to cards, Yuuya and Gongenzaka combine their forces, but they are soon cornered by attacks fiercer than they ever imagined! Just then, a familiar engine sound rings out over the forest!!
Then, it isn't just Tsukikage.