The balance of the Sacred Kingdom of Keidas is at stake when powerful, wild creatures known as "Wraiths" invade from the other side of the Veil, threatening to consume the living. The Wraiths corrupt their victims and can even possess their bodies, turning them into unstoppable monsters that prey on ordinary people. The "Chimeras," hybrid warriors born from the union of two souls, are the only ones who can protect humanity. 

Briar and Lute are two sisters who have been reborn as Chimeras. The transformation has given Briar superhuman strength and resilience, while Lute, who sacrificed herself to bind her soul with her sister's, has become a ghost with mystical powers. Voiced by Stefanie Joosten (Metal Gear Solid 5), Briar and Lute are sent on a mission to reclaim a ruined city that has been devastated by the Wraiths, only to discover that the Order to which they belong has a much more complex plan in mind.