While there is no major official manga titled "The Nun's Secret," there are several web-based stories and related media with very similar names that you might be looking for:
: The original comic book series by Ben Dunn that inspired the Netflix series Warrior Nun, focusing on a secret society of nuns fighting demons. The Nun (The Conjuring Universe)
, here are the most likely candidates for what you’ve found. 1. The Romance Drama: The NUN Secret (Wattpad/Web Novel) the nun 39-s secret manga
However, fans of literary horror (think Shirley Jackson or Thomas Ligotti) defend the pacing as essential to the theme. The boredom is the point. The ritual is the horror.
The NUN Secret (Web Novel/Wattpad): This is a popular online story by user Nalunyz. It follows Aisen Empleo, a woman trapped by a cruel man named Alexos because she resembles his ex-wife. The plot involves obsession, revenge, and a "bigger, secret game". While there is no major official manga titled
Episode/Chapter Guide
On Reddit’s r/horror manga and Twitter’s #Nun39, the reception is polarized but passionate: Mystery/Drama : Given the hint of a "secret,"
The Narrative: It uses the "nun" aesthetic as a symbol of innocence or a literal disguise. The plot revolves around a "bigger secret game" involving revenge and manipulation.