Kyoukai no Kanata Movie 1: I'll Be Here - Kako-hen

Mirai Kuriyama is the last survivor of a cursed Spirit World Warrior clan that turns blood into weapons. Her attempt to kill Akihito Kanbara goes wrong when she discovers that the half-youmu boy is effectively immortal.

Their strange connection draws Mirai toward Akihito, Mitsuki, and Hiroomi while increasingly dangerous youmu gather around them. Friendship becomes inseparable from battle as the immense entity known as Beyond the Boundary approaches release.