Do you know about the facility called a convent, where wicked women are often sent?

"I thought it would be too cruel to take her life as well..." "Don't worry. She's been sent to a convent famous for its strict discipline." "But what about the person being sent there?" The "convent"—where annoying plot elements like broken engagements, true love, reverse harems, and psycho sisters are disposed of with a single line of "well, that wraps that up, no need for them anymore." A story about a nun who wants to cry out from her soul: "What did we nuns ever do wrong to be dumped with all these unnecessary things just so the main couple can live happily ever after?"