Inside the painting they set off to find the rainbow spiritual power that will lead them to the branch. Ranmaru tries to scout ahead but his spiritual energy is so drained he reverts to his Ayakashi form, a small red puppy, and has to drink Aoi's hot cocoa to recover. Ginji finds a book about Umi-bouzo. His job was to manage the miamsa caused by the Yokai and humans in the Eternal Realm, until humans imprisoned him in the ocean...