Soon after Akumaro's demise, Tayu returns to the Rokumon Junk to assist in Doukoku's reawakening. To that end, after finally having the answers to her questions, Tayu deliberately has Shinken Pink destroy her shamisen to not only discard her past life, but to also use Shinza's anguished soul to revive Doukoku. She later uses the last of her powers to restore Doukoku's body, giving him immunity to the Sealing Character and independence from the Sanzu River. With only her kimono remaining, Doukoku later throws it into the Sanzu River as a final respect to her. Tayu is modeled after , a sea slug, and various molluscs and has elements of the . Because of the nature of rendaku in Japanese, her name is only Usukawa Dayu when it is said in full; otherwise, it is Tayu. Thus, the December 2009 issue of "Hyper Hobby" magazine lists her name in English as "Tayu". Tayu is voiced by , who also portrayed Usuyuki in her lone appearance on-screen.   is the Gedoushu's strategist, a squid-headed demon armed with a shakujō who awaited for Doukoku's revival. Shitari sees humans as mere specimens for his research, uncovering means to overflow the Sanzu River. He also possessed texts from the Shiba House which he used to learn about the seal placed on Doukoku. Though he warns Doukoku not to trouble himself with the Shiba House's sealing character so not to attract attention from certain Ayakashi, Shitari recruits Isagitsune in an attempt to slake his curiosity on what the sealing character is. He later recruits Oinogare in an attempt to re-open a well the Gedoushu used in the past as their base of operations by sacrificing nine maidens, formally introducing himself to the Shinkengers as a result. While Doukoku is in a vulnerable state struggling with his surging power, the rogue Ayakashi Gozunagumo bullies Shitari into extorting the sealing character from Shinken Red. Despite poisoning Takeru, Shitari fails to get him to reveal the sealing character due to the combined interference of Shinken Gold and Juzo. When Doukoku revives and punishes Gozunagumo, Shitari freely confesses that the one thing he values above Doukoku is his own life and gains forgiveness from his leader out of amusement with his honesty.