[tsuniverse (Yuniba)] College Girl Taken Over by an Old Man 1-4 (Fantia) [desudesu]

Nineteen-year-old Naho Koyama loves old books, but the dusty volume waiting at the used bookstore where she works wants her back in the worst way—an ancient spirit pours itself into her voluptuous body, ravenous for the life force only raw sex can restore. Wearing Naho like a suit, the entity pins her flustered, glasses-wearing manager Kosuke down and rides him senseless, then hops into her best friend's body to grope and finger both girls at once, treating the shop's back room like a personal playground. By the end, the spirit dangles a spare key and a devil's bargain before Kosuke: move in together, help return Naho's soul, and claim daily access to her impossibly soft body—if he's willing to become a full accomplice.