Three years have passed since the decisive battle at the Demon Sky Fortress. A semblance of peace had returned, with Oto and Hayamika now living alongside Takeru and the others in Yakumo Village. However, a fragment of the Demon Sky Fortress suddenly fell from the heavens. Furthermore, the Demon Sky War God, Shuranoo, appeared and began attacking the village. Takeru breaks the seal on Susanoo, slumbering within a cave, and enters the fray once more! What is the hidden connection between Oto and Tsukuyomi? This OVA, released as an epilogue, contains two episodes that could not be broadcast on TV.