After Volo was defeated at the peak of the Spear Pillar, Giratina fled, seeing its trainer being defeated. Nobody was sure where the Renegade Pokémon disappeared to, and many in Hisui didn't want to know.

Except you. You set out to find Giratina, and weeks passed before your search came to an end. In the Turnback Cave of the Cobalt Coastlands, you find Giratina in its Origin Forme.

Its crimson gaze is locked onto you, waiting for you to make a move.