Summary - For over 100 years in Atrua, there is an awful tradition where once per month, a commoner must be sacrificed to the demon king in perfect condition or else spawns of demons shall be released. For compensation for the sacrifice's family, they will receive some riches in order to courage the sacrifice tradition.

However, when a prophecy said that nine abominations shall be born to the demon king, the nobles start sending only male sacrifices to avoid having the demon king have any children, until he appears before them and demands 30 female sacrifices to make up for the years they only send males over 30 years.

Thus, one of those sacrifices is named Agatha Fromond, a common woman who is being used by her own parents for wealth. She knew her time on Earth will be limited, but she never expected that her own parents would offer her as sacrifice without her consent which is quite common in the tradition, especially since she was unfortunate enough to be chosen by the demon Lord.

She was taken into the dark chambers and got teleported to the underworld where she expects that she will die. However, something completely unexpected happened especially where it's the exact opposite of what she thought it would happen.

A/N - It's basically inspired by a Ecchi manga (Of all things) and a romance manhwa I read, and decided to take more inspirations from the manhwa then the manga, especially since there's barely any ecchi/fanservice scenes, though as usual, there will be dirty jokes and such like usual.

I hope you guys enjoy this idea, and if you did. Leave a vote and have a safe day! Aqua out!