Kajishima himself has hinted that Kagato may still be alive in some shape or form. This is possibly referring to the female half of Kagato, which is presumably the result of the female Naja clone possessing the male prototype. (See Noike Jurai for more details.) Kagato has also made appearances in Naoko Hasegawa's novels and Hitoshi Okuda's two manga series, but all these books are considered outside "official" canon. In Okuda's manga, Kagato reappears in the form of a clone who holds all the memories of the original, but has a much more submissive personality and acts merely as a subordinate to a former student of the original. Tenchi Universe  In the first television series, Kagato has a different appearance and origin than his OVA counterpart, as he is a great swordsman connected to Jurai's Royal Family (for that reason, he is also called Kagato Jurai by fans). He would have been the legendary hero instead of Yosho, but he became obsessed with power, committing countless destructive acts in his pursuit of more power. Yosho defeated him, and Kagato's name and likenesses were erased from Jurai's records and cities. But years later Kagato would return to pose as Yosho, having greatly increased his power having spent his time in the Darkness of the Universe (presumably Hell). Such power granted him, among other things, Eternal Youth and a Master Key of his own (which resembled a dark bastard sword, as opposed to Tenchi-ken's "tsurugi"-like appearance). By posing as Yosho and displaying a fraction of his great power, he was recognized as Jurai's returning King and Emperor. Kagato then declared Ayeka and Sasami wanted for treason, all a part of his plan to eliminate the rest of Jurai's royal bloodline and to get revenge against his former friend Yosho. This forces the Tenchi family to leave Earth and journey to Jurai to clear their names. After Katsuhito reveals that he is Yosho, Kagato confronted him at the old Jurai Palace. Although Yosho – and later, Ryoko – was no match for him, when Kagato saw Tenchi, he noticed his resemblance to Yosho and quickly realized that Tenchi is Yosho's descendant. Taking Ayeka with him and leaving Yosho and Ryoko severely injured, Kagato told Tenchi that if he made it to the Jurai palace then he would challenge him, using Ayeka as leverage to draw Tenchi into the fight.