The era of "guns and magic". The united nation of Orcsen, which has many demon races led by the orcs, and Elfind, the country of beautiful elves. On the border between the two nations, where historical conflict deepens, Dinerus, the leader of the Dark Elf clan who was exiled from his homeland, has a fateful encounter with the orc king Gustav. A profound war story romance that overturns conventional wisdom, opens!