The roots of Kalista

This comic

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Jei - a.k.a. Jei-san, The Blade of the Gods, The Black Soul, The Demon Spearman, and a number of other dark nicknames. Although Lord Hikiji is considered the main villain of the series, Jei is the closest thing to a true nemesis of Miyamoto Usagi. Jei is a tall anthropomorphic wolf with long black hair, wears a black kimono, and is armed with a yari (straight-edged spear) — Jei's main weapon which has a black blade — and a daisho (pair of swords). Jei is a samurai who believes that he was chosen by the gods as an emissary, to smite evil and execute sinners. However, in his delusions, Jei perceives everyone to be a sinner and has the tendency of killing anyone who draws his attention. While he is capable of acting normally, once in the throes of his madness almost anyone within sight is marked for death. Because of his brutal rampages, most do not consider him an emissary of the gods, but under demonic possession, or simply insane; whether or not he still has his mental faculties, Jei does possess some supernatural power. The most obvious of Jei's abilities is his immortality, despite being "killed" numerous times, he has always come back. He was struck by lightning, fell off a cliff, and run through with a holy sword; but Jei has always returned in some form or another. Also, he has the ability to consecrate weapons, turning their blades black to match his soul although the ancient sword, Kusanagi, resists this. In battle, he uses these blades to steal people's souls; minor injuries can greatly weaken opponents, leaving them helpless; while serious wounds can rip the soul right out of a person, killing them instantly. Finally, he seems to know things about people that he otherwise shouldn't, even though he doesn't always understand it either. In Circles, Jei kidnaps a young boy named "Jotaro"; he isn't sure why the gods told him to do it, but the readers later find out that Jotaro is Usagi's son. After Jei's "death" by being run through with the Kusanagi, his body was destroyed, but his spirit has possessed others to do his bidding. However, it is unknown if he can voluntarily switch bodies with the death of the current host occurring.