I'm Not a Succubus! Vol. 3 (manga)

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!