Battle Spirits: Kiseki no Hasha

The story focuses on Seiya, a student at the same school as series regular Toppa Bashin, who comes into possession of a cornerstone — a card of significant power and uncertain purpose. Meanwhile, J has returned to Japan with a new Battle system to demonstrate, and Dan has found himself transported from Otherworld to Toppa's reality entirely without planning to. Three threads converge in a setting where the Battle Spirits card game is the primary means through which conflicts are resolved.