Kaishin Muba has a length of 38 meters and has a mass of 2000 tons. In terms of powers it armed only with constricting tentacles and can fire a magical energy ray from the jewel on his forehead.
As sailors navigate the ocean waters, one fear picks at their souls, knowing full and well of what lives beneath the waves. Moving through the black waters of the thrashing ocean, Kaishin Muba, the God of the Sea, dwells. On normal conditions, the demigod would not soil himself to touch such pitiful mortal creatures, but when the dark wizard Sukinowa summoned him, the beast had to answer. Pulling from the ocean depths, during a ravishing storm, Kaishin Muba attacked Oto and Osu. Lashing out with burning light from its forehead, and grasping tentacles, the monster dragged Osu into the waters. Oto, throwing her own safety into the wind, dove in after and fought to save her love. Releasing her fireballs, the young girl managed to relinquish the vice grip of the water god. Oto moved in and pushed her ally to the surface, but for her interference, Kaishin Muba grabbed her. Soon after the entanglement, the soothsayer ended his spell, causing the summoned Muba to disappear. Taking with him, the love of Yamato Takeru.