Seikon no Aria / Stigmas of Aria

"The Temptor's Disease" is a disease in which a succubus's curse inflicts uncontrollable sexual desire on the patient, at the end of which he transforms into a terrible monster.

Only the church-chosen sister "exorcist" Aria, who has been specializing in fighting this ailment since birth, can save people suffering from this disease.

In childhood, the main heroine was attacked by an infected person who tried to rape and kill her, but

she was saved by an "exorcist".

10 years passed, and the grown main heroine Aria decides to dedicate her life to saving people from the spreading disease of temptation.