Oosumi, the Technology Research Department Chief for the Chi-ryuu, speaks of putting a Toujin stone into a Shikigami. When the revenge-driven Izou hears about this, he takes the Toujin stone he got from a while back into Fukumaden with him. Riku, Souma, and Nazuna head into a rocky mountain field of Fukumaden in search of more Toujin stones. Riku gets seperated from the group, and he is soon confronted by Izou. They summon their Shikigami and do battle. Kogenta easily handles Fuji, but when Izou embeds his Toujin stone into his Shikigami, Fuji then transforms into his Daikoujin form and starts beating Kogenta. Not wanting Kogenta to die, Riku unintentionally uses the Daikoujin and makes Kogenta turn into a huge monster again