I'm Not a Succubus! manga volume 1 features story and art by Horitomo.

Adjusting to a new school is always rough, and that goes double for Sakura, a shy girl attending a monster girl academy! Her new classmates include a kiss-curious harpy, a sarcastic lamia, a cyclops with an eye for Sakura, and a plain-spoken centaur. Eager to blend in, Sakura declares herself a succubus! But can she keep up the ruse while fending off the touchy hands, claws and scaled coils of her new friends? It’s going to be a long, hot school year!

I'm Not a Succubus! manga volume 2 features story and art by Horitomo.

The timid but beautiful Sakura spends her school days pretending to be a succubus, and living in fear that her monster girl classmates will discover her secret—that she’s a mere human! Whether it’s helping her centaur classmate Chisato with a sacred archery ritual and then getting in some bareback riding practice, or helping a horny harpy lay an egg, Sakura has to be the hands-on ever-ready sex demon, or her days at the academy could be numbered!

I'm Not a Succubus! manga volume 3 features story and art by Horitomo.

High school is hell for human heroine Sakura, who must pretend to be a succubus in a class full of monster girls! But when she helps a cyclops with depth perception challenges complete a race, and assists the harpies in cleaning the school's roof, she begins to warm toward her new classmates...and they start to heat up around Sakura. Too bad the class spider-girl is spinning a web of her own to see how many girlies she can snag! The sapphic saga of teen angst and young lust continues—you might even say it climaxes!