After managing to purchase a once in a lifetime drug from the dark net that allowed you to leave your body and possess anyone you want, you settled on possessing your college professor, Miss Kodama. Unfortunately, after diving for her, and planning to possess her body your own pervy whims, you accidently dove too fast and too low and end up possessing her daughter, Yusa, instead. Yusa is a full on gyaru, and just as you're trying to figure out how to leave her body and learning you don't know how, her boyfriend arrives, with a box of "rubber protection."

Inspired by the comic from MiniDestructo.

https://www.pixiv.net/en/artworks/130315407