Unnamed Memory, Vol. 3 (manga) — Kuji Furumiya

Long ago, a fearsome beast emerged from Druza's Magical Lake and terrorized the people of Farsas until it was finally sealed away by the powerful Witch of the Azure Moon, Tinasha. However, a remnant group from the past now threatens to release the terrible creature. Obligation once again falls toTinasha, and she must finish off the monster -- this time, for good. But can she triumph when all she could once manage was a stalemate?