Kuroinu ～The proud saint is stained with white filth～

Story

Based in the erotic game by Liquid. The plain lands of “Eos” located in west “Serenus.” Seven fortresses located in the northern boundaries of Eos served as the setting for the war between the Alliance and Legion. This conflict, however, was in its final stages with the decline of the Dark Elf queen’s power. Under the High Elf’s calling, the “Seven Shields Alliance” was formed to stand against the Legion.

Synopsis via AniList (English).