Lilim Holic

A society where humans and succubi coexist. The protagonist, Hayato Yui—an otaku—finds himself drawn to Emu Kato: a fellow classmate, a succubus, and a member of their class's highest social caste. "It isn't lust; I've fallen for her as a person," the outwardly reserved Hayato tells himself. Meanwhile, the equally reserved Emu secretly harbors feelings for Hayato and is eager to bridge the distance between them. Their desires intertwine in this "misguided romantic comedy"!

(Source: Magazine Pocket, translated)