Kyoukai no Kanata Movie 2: I'll Be Here - Mirai-hen

Akihito is overjoyed when Mirai returns, only to discover that she remembers nothing of him, their friends, or her life as a Spirit World Warrior. Believing this amnesia may be her chance at an ordinary life, he chooses to keep the supernatural truth from her.

Fragments of Mirai's past refuse to remain buried, while a new threat sends shadow-like creatures after her. Akihito must decide whether protecting Mirai means preserving her peaceful ignorance or helping her reclaim the painful life that made them inseparable.