In the world of science, alchemy is outdated, but schoolgirl Yukari, a genius born from a family of alchemists, tries to keep the flame alive. But the workings of a mysterious person put Yukari in the most precarious position of her life!
A boy finds a strange monster girl that came from an egg in an odd forest, and takes it home. Suddenly, it mounts, and starts cum-sucking him. As it pleasure corrupts him, the semen causes it to grow further. 32 pages total (31 main + 1 title page)