My Harem in Another World

Ichiro Tadano, a white collar worker, walks through the streets of Japan, trying to use his money he just got from pay day. He runs into a cute girl that's trying to promote a phone game, which he happily downloads. Only, it wasn't a normal game. The phone absorbs him, and he finds himself waking up in a brothel as the richest man in the world with three beautiful women. Did they mention they were virgins?