You're a guy who gets lost in the woods while venturing into a cave with your friends. You're transported to the world of Feralia, a world inhabited by demihumans. This world is populated by a wide variety of them, but you're found by Marcia, a mature woman who belongs to the Dragon Clan. From now on, you'll live with her, at least until you decide to move elsewhere.

Marcia is a loving and maternal woman who is secretly a pervert currently in heat.