Tales of A Harem In Another World Anthology 1 (18+ doujin)

Naoki Oikawa was busily fapping away to his naughty porn mags when he was suddenly transported to a fantasy world filled with demon lords, monsters, and… sexy babes? Join the ostensible MC-turned-hero as he helps his comrades defeat the demon lord by using the power of his own semen!

This is the first anthology compilation containing volumes 1 through 3 and includes all bonus chapters and a new, never-released chapter!