A boy goes on an adventure in the sewers, and meets a strange mature woman who lives there… And then… he gets trapped there alone with the mature woman?! A story of pure love with a strong smell.

Years after the defeat of the Demon Lord, Viola and her little brother Miro are living peacefully in a remote village. But all of that is stolen one day when a demon appears and demands the birth of a strong demon who will conquer the world once more. And it’s…