Yakumo spends four years training to find Pai, only to discover she's forgotten him entirely, and the show makes that sting worse by showing exactly how much he's changed while she stayed frozen. The action doesn't flinch; violence has weight and consequence, not just spectacle. By the end, you realize this is a story about two people trying to become the same version of each other again, and the OVA doesn't pretend there's an easy answer waiting in the Holy Land.

Yakumo has spent four years training and searching after Pai vanished without explanation. When he finally finds her, something is wrong: her memory appears to be gone. Together they set out for the Holy Land, the birthplace of the immortal Sanjiyan race, hoping the journey will bring her memories back. The three-episode OVA blends action, adventure, fantasy, horror and romance.