Touma regains all his lost memories and realizes Daichi and the Megids' true objective, which is to recreate the same cataclysmic events of 15 years ago. Determined to stop them and avenge Kento, he obtains a new power.

Touma dives into a portal opened by the pillars of light to stop Calibur while the other swordsmen look for a way to close it despite being warned by the Megids that Touma will not be able to return if they do so.