: This visual novel and manga series features a pious nun character with a "secret" genetic condition that grants her heightened senses and combat skills.

has been praised for its strong female protagonist and its willingness to tackle taboo subjects regarding women's health and bodily autonomy. It offers a unique perspective on the "medical drama" genre by stripping away the safety of a modern hospital setting and placing the doctor in a hostile, historical environment.

The protagonist is not a nun, but a skeptical journalist named , who arrives at the convent following a cryptic letter from a dying priest. The letter claims: "The 39th nun knows where God buried His mistakes."

: She meets a kind priest who is actually a demon in disguise .