As a Revenant Hunter, the player must prevent the world’s inevitable collapse by journeying 100 years into the past alongside Lou, a mysterious Revenant girl with the power to manipulate time. The player as the protagonist can freely customize their appearances and more in-game.

A Revenant girl who revived the protagonist—who lost his life during a mission as a Revenant Hunter—by giving him her own heart. She holds the special power to follow someone's Pathos and leap into the past. With the mission to save the world, she embarks on a journey to the past alongside the protagonist.

He is the heir to the Voda House, a Revenant lineage descended from the Progenitor and one of the most formidable bloodlines among their kind. He once led MagMell as a magical research institute, delving into the secrets of ancient formae. He also holds the title of a judicial magistrate, acting as an arbiter to settle disputes between vampires and humans.

A former human-turned-Revenant who belonged to Mag Mell's Research Institute 100 years in the past. To protect his friend Valentin, who values his strength above all else, he has become a personal bodyguard, taking on dangerous missions without hesitation.

A Revenant with exceptional talent, lauded as a master swordsman. He serves as the ace of The Dawn Chorus, an organization fighting to reclaim the Corroded Scar. His reckless fighting style, which disregards his own safety, is feared even by his allies, and he always operates on his own.

A Revenant doctor at a clinic nestled deep in the forest. She wields the healing powers of the Luxuria Bloodline, a lineage rumored to be cursed, to tirelessly research the Resurgence and treat the twisted Revenants it creates.

A Revenant descendant of the Progenitor who saved the world from collapse. In this decaying world on the verge of ruin, she leads "MagMell", an organization fighting for humanity's salvation. She bestows the mission of salvation upon the protagonist and Lou, sending them back in time.

 A mysterious girl who appears before Lou and the others in the Undead Forest in the current world. She seems to be someone who knows a great deal about what happened to Holly...​