Shina Dark ～黑月之王与苍碧月之公主～

Legend has it that once every few centuries, when the sun and moon cross paths, the Demon King's Ring will appear in the sky. At the same time, the source of all evil—the Demon King Ekusoda Sero Kurau—will awaken, and everything will fall into darkness. On the day of the rare Black Moon, the Demon King's Island emerges in the Oridian Inland Sea. Yet, when the Demon King awakens, what awaits it is...! The island is filled with young girls, all sent there as offerings to the Demon King, for it is said that the Demon King himself is a lecherous being. However, the Demon King has no interest in women at all and wishes to send the girls away from the island, only to be unexpectedly refused by them. Meanwhile, a party of heroes arrives on Demon King Island to vanquish the Demon King. What fate awaits the Demon King next...?