Dr. Yuuko is the best sex enhancement surgeon in the world, and you are her intern. In this clinic, you’re training to become a surgeon like her, and soon discover that being under her wing has more perks than you expected. Together with your intern senpai Satsuki, a cute and energetic girl who’s always smiling, the three of you will have lots of sexy fun enjoying your newest sex enhancements.

[From Nutaku]