Genpou Saji, secretly the strategist Shishi Ouin, lives a meticulously crafted double life. As a key member of Nanyo Academy’s Big Four, he masterminds pivotal conflicts, including manipulating Ryofu Hosen’s betrayal of Toutaku—echoing his historical Three Kingdoms counterpart’s cunning. Under his alias, he schemes to seize the Kusanagi no Tsurugi, intending to assassinate Toutaku and recalibrate power dynamics. Yet when Toutaku recognizes his strategic brilliance, doubt fractures his resolve. His manga arc concludes tragically: confronting Hakufu Sonsaku, he sacrifices himself by absorbing her dragon’s corrupting energy, losing an arm before leaping from a cliff in a fate mirroring Toutaku’s. The anime diverges sharply, casting Shishi Ouin as overtly sinister. He hypnotizes allies, commands Kannei to assassinate Enjutsu, and nearly dies when Toutaku possesses Hakufu during a botched manipulation. Redeemed by Hakufu and Nanyo’s forgiveness, he embraces a tentative path of atonement, though his flirtatious guile lingers. In *Great Guardians*, deception deepens with the introduction of the "true" Genpou Saji—a woman tied to Zuo Ci. Partnering with Shishi Ouin, they fabricate a scheme to incite Ryomou Shimei’s jealousy, seeking to unleash her dragon’s power. Yet beneath this ploy, Shishi Ouin secretly shields Ryomou, Ryofu, and the real Saji from harm, blending manipulation with protective intent. Throughout these narratives, Shishi Ouin balances lecherous antics with razor-sharp intellect, veiling vulnerability beneath arrogance. His bond with Ryomou and Ryofu wavers between exploitation and guarded loyalty, notably in his efforts to spare Ryomou emotional turmoil. Though morally ambiguous, his legacy weaves threads of sacrifice, redemption, and the inexorable pull of historical cycles.