Blade of the Immortal (ONA)

Manji is an amoral swordsman, who has been cursed with eternal life. He has grown tired of living with all the death he has created. He has no skills other then those of killing, thus he forms a plan to regain his mortality: he shall kill one hundred evil men for each good one he has killed. The old witch who afflicted Manji with immortality agrees to Manji's proposition and Manji is set on his path to kill one thousand evil men. On his journey he meets a young girl, Rin, who has her own vengeance to seek against the sword school whose members slaughtered Rin's family. Rin and Manji journey together, each hoping to find some kind of peace. In their way are many varied enemies. Rin and Manji are almost constantly under attack and must learn to live their lives, avoiding being consumed by revenge.

The year is 1580. Using an army of soldiers equipped with sophisticated weaponry, Nobunaga Oda is on the verge of ruling Japan with an iron fist. One of his enforcers is Ginnai Doma - a fallen samurai reborn into an indestructible killing machine. As Ginnai continues his killing spree on ninjas and those who oppose Nobunaga's rule, Shishimaru of the Iga Ninja - going against the Koga Ninja's plans - pursues a one-man vendetta to avenge the deaths of his comrades and kill the immortal warrior.

Get ready for a nightmarish journey through faith and betrayal as the infamous Jubei Yagyu wields his deadly blades against the forces of good and evil alike. In an orgy of unbelievable savagery, the armies of the Shogun give no quarter as they ruthlessly slaughter their enemies. Trapped on the rocky isthmus of Amakusa, the faithful await divine aid as the demon stirs in their midst. Desperate for vengeance, a Child of Heaven becomes the emissary of Hell. Tortured by visions of Amakusa's final hour, legendary swordsman Jubei Yagyu returns to his ancestral home seeking respite from the bloody duties of a feudal retainer. Life in the village of Yagyu possesses a serenity ill-befitting days of armed rebellion and unholy alliance. For Jubei the tranquility is far too transparent, and soon, chilling rumors reach him. Four dead heroes renew their claim to life, feeding on the fear and violence of the age. Forced to take up the sword once more, Jubei returns to the path of vengeance and damnation in Ninja Resurrection! Note: Originally intended to be 4 episodes long, though due to a scene in the first episode being eerily similar to an incident that happened in Japan at the same time, the show concluded as 2 episodes after facing external pressure leaving the story on a cliffhanger.

The bloodlines of “Oni” and “Momotarou” have been passed down among certain humans for generations. Long ago, the Oni, aware of their own ferocity, lived in seclusion. However, their peace was shattered by an invasion led by Momotarou. Over thousands of years, these two factions formed the “Momotarou Agency” and the “Oni Agency,” respectively, and have been locked in conflict ever since. The protagonist, Shiki Ichinose, suddenly learns of his Oni lineage following an unexpected attack by Momotarou. This revelation sets Shiki on a path to discover the destiny that lies within his blood — a meeting with the Oni dwelling within him. —A new generation of dark heroics begins here in this tale of demons!