This debut collection features a body modification app that lets the heroine exact revenge with a double futanari insertion on an arrogant girl!

It's the first collected volume of 41 stories, overflowing with Extreme horror erotica, including themes like human farms and forced transformations.

Highlights include a plain-looking girl using the app to become a futanari with large breasts, subjugating bullies; a brother's revenge turning his arrogant sister into a sex slave via the app; an elf licked all over after a chocolate curse; monstrous entities disguised as beautiful women for predation; and human farms in a sci-fi setting. This volume is a compilation of unique situations where beautiful girls are physically altered and transformed, descending into carnal delight.