In the lush frontier region of Marshall, Asteria, the daughter of the frontier lord, has had three marriage proposals fall through due to misfortune befalling the other party. As a result, she has become known as the “cursed lady.” One day, Noir, a boy she was once close with, returns to Marshall as a priest. Though Asteria is delighted by their unexpected reunion, from that day onward, the course of her fate begins to change. Where will their pure love ultimately lead after becoming consumed by obsession and madness?