Shout the Fiery, a treasure hunter well-versed in ancient scripts, spends his days deciphering ancient manuscripts, setting out on expeditions, and unearthing ancient artifacts. One day, while exploring an ancient ruin, Shout discovers the “Kakuzyu Awakener Omegahorn” and the “Egorgears” Though puzzled by the Omegahorn—which differs from the Kakuzyu Awakeners used by modern hunters—he tries setting the Egorgear into it, and a giant horned beast named Enkaku appears! Enkaku recognizes the qualities of a “King” in Shout’s ego (his unwavering resolve to follow his own path) and, calling himself “Captain Omegahorn,” demands that Shout fight alongside him…!?