Kentei acts as the primary antagonist in *Ikki Tousen: Xtreme Xecutor*, concealing his true identity as Shiba'i Chuutatsu, the Three Kingdoms reincarnation of Sima Yi, while posing as Kentei, counterpart to Emperor Xian of Han. This deception unravels in episode 11. He initiates his scheme by approaching Nanban High's leaders, pledging support to conquer Kanto in exchange for their loyalty. His strategy orchestrates the division of the major Kanto schools—Nanyo, Seito, and Kyosho—by luring their strongest fighters to a false tournament on Nanban Island. Concurrently, he sends assassins to eliminate the now-undefended leaders. This plot serves his deeper goal: resurrecting thousands of vengeful dead warriors using the blood spilled by the captured fighters. He manipulates the fighters by exploiting their darkest emotions and historical grudges, such as intensifying Kanu's hatred by channeling the historical Guan Yu's rage toward Lü Meng. Kentei's background implies he might be an undead amalgamation of potent deceased wills, including Emperor Xian and Shibai, driven solely by vengeance and global anarchy. He specifically fears individuals who defy destiny, like Hakufu Sonsaku. His connection to the spirit world allows him to influence historical fates and the emotions tied to the fighters' reincarnated souls. Anime portrayals diverge from the manga regarding his physical state and tactics. While the manga depicts him reliant on a wheelchair due to losing his feet in an incident involving Teni, the anime reveals this disability as a calculated ruse; during a critical confrontation, he demonstrates the ability to walk. His supernatural abilities include chi manipulation, visibly marked by activating glowing tattoos. Kentei's plans culminate in a large-scale battle where the captured fighters resist his control. His overarching scheme to permanently alter their destinies ultimately fails, resulting in a restoration of the status quo among the schools by the season's end.