onmyou taisenki

Season 1

Episode 17: Byakko's Great Underwater Decisive Battle

Momo, Rina, and Ryuuji come with Riku and Nazuna to a water field in the Fukumaden. Riku, Kogenta, Nazuna, and Horin then must fight underwater against the Chi-ryuu's Mutsuki (Shikigami - Gyoujaku no Ebihiko) and Daikan (Shikigami - Shuusui no Ryuukon).