Arnas (voiced by MAO) – A holy knight that serves the curia. She once touched the blood of the Ruler of the Night, and has become half-human, half-monster. With her bloodsucking ability coming from her half-monster side, she fights using a demon sword formed from her blood. She is a quiet and calm girl at first glance, but has strong passion hidden within.Lyuritis (voiced by Hiromi Igarashi) – The chosen saint of the current era. In exchange for her life, she is destined to seal away the Ruler of the Night. Arnas is Lyuritis’ close friend from boarding school. Although she only grasps the expectations of the curia to a certain extent, she has accepted her fate as a saint. Her nickname is “Lulu.”
The Two Girls
The saint who carries the burden of devoting her life to seal the Ruler of the Night. And the holy knight protecting the saint from Jayou and delivering her to the Ruler of the Night.
Arnas is newly dispatched to Rusewall Island, where she is reunited with her close friend Lyuritis. It’s their first meeting since leaving boarding school, so the two girls do not hide their happiness.
But their encounter was no coincidence.
A holy knight and a saint. In reality, their bonds will be torn. Does Arnas protect the life of her close friend, or sacrifice the saint’s life to the Ruler of the Night? For these girls in conflict, their fated decision draws nearer at every moment.