Manji is the protagonist of the Japanese manga series Blade of the Immortal. In the story, he's known infamously both as the "Hundred Man Killer" for the number of men he's killed by the beginning of the series, and "Mister Twelve Blades" for the number of weapons he carries. He is most easily identified by the manji symbol he wears from which he derives his name and the scars across his face, and as the title of the manga implies, he's been given immortality by the means of the Kessen-chu, which prevent him (for the most part) from dying.

~!Little is known about Manji's background except that he once served under a local daimyo, unknowingly enforcing his brutal rule on the locals until he found out his lord was corrupt and killed him. For that, he was hunted as an outlaw. He was later nicknamed "Killer of 100" after the number of police officers he killed.!~

(Source: Wikipedia, boti.fandom.com)

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. 
(Source: Anime News Network)

__Height:__ 174 cm

[Profile (HeroQ)](https://heroq.com/members/seki_tomokazu/) | [Profile (Atomic Monkey)](http://www.atomicmonkey.jp/jp/archives/talent/sekitomokazu) | [Twitter](https://twitter.com/seki0908) | [Instagram](https://www.instagram.com/sekitomokazu/)

A Japanese voice actor, stage actor, narrator and singer affiliated with talent agency [Atomic Monkey](http://www.atomicmonkey.jp/jp/), having previously worked under [Haikyou](https://haikyo.co.jp/). He's also a chair member of creative production team HeroQ, which he joined in 1994.

__Non-anime voice roles:__
- Miguel O'Hara - *Spider-Man: Across the Spider-Verse* (2023 Film; JP dub)
- Toad - *The Super Mario Bros. Movie* (2023 Film; JP dub)
- Marc Spector/Moon Knight, Steven Grant/Mr. Knight, Jake Lockley - *Moon Knight* (2022 TV; JP dub)
- Siegfried Kaslana - Honkai Impact 3rd (VG)

[Website](https://www.keithsilverstein.com/) | [Twitter](https://twitter.com/SilverTalkie) | [Instagram](https://www.instagram.com/keithsilverstein/) | [Facebook](https://www.facebook.com/keithsilversteinvo) | [TikTok](https://www.tiktok.com/@keithsilversteinva)

Keith David Silverstein is an American voice actor, best known for his roles as Johan Liebert in Monster, Vector the Crocodile in the Sonic the Hedgehog video games, Robert E.O. Speedwagon in JoJo's Bizarre Adventure, Hisoka in the 2011 version of Hunter × Hunter, Oogai Mori in Bungo Stray Dogs. He is also known from several non-anime roles, including Gabriel Agreste a.k.a. Hawk Moth (Shadow Moth in later seasons) in Miraculous: Tales of Ladybug & Cat Noir, and Zhongli in Genshin Impact.

Hiroaki Samura's Blade of the Immortal will keep you on edge! Manji, a ronin warrior of feudal Japan, has been cursed with immortality. To rid himself of this curse and end his life of misery, he must slay one thousand evil men! His quest begins when a young girl seeks his help in taking revenge on her parents' killers . . . and his quest won't end until the blood of a thousand has spilled! 
 
(Source: Dark Horse) 
 
Notes: 
- The magazine release contains 219 chapters, which includes a prologue. 
- The tankoubon release re-arranges the manga into 207 total chapters across 30 volumes. 
- The Dark Horse release re-arranges the manga into 208 total chapters across 31 volumes.

The sequel is set in the Bakumatsu period in the 19th century (the original manga was set in the earlier Edo period), and follows the main character Manji, who starts the story in a life of seclusion in the Tosa domain, but heads to the capital for a certain reason. The story will have him confronting the strongest warriors of the time. (Source: Anime News Network)

New adaptation of Mugen no Juunin. 

Damned to wander the Earth in an endless cycle of carnage and murder, the fallen samurai known as Manji seeks the chance to win back his mortality. To do so, he must first balance the deaths weighing against him by slaying 1000 evil souls, a task that would take even the greatest warriors a lifetime. Manji, however, has all the time in the world to kill, and his lonely quest leaves a trail of bloody bodies in his wake… until his path crosses with that of Rin, who has sworn vengeance against the murderers of her family and school, even though the cost will almost certainly be her own life. 

(Source: Sentai Filmworks)

__Height:__ 170 cm (5'7")
__Hobbies:__ Taking Pictures, Biking
__Skills:__ Osaka dialect
__Alma Mater:__ Meiji University
__Agency:__ Amuleto (1995-2021), ANDSTIR (2021-present)

[Website](https://tsudaken.jp/) | [Twitter](https://twitter.com/tsuda_ken) | [Instagram](https://www.instagram.com/2_da_ken/) | [Youtube](https://www.youtube.com/channel/UC_EGdEIJrwsOTxucjF3xU8Q)

He likes 50mm single focus cameras and old motorcycles. He grew up in Jakarta, Indonesia. He is married with a woman from outside the entertainment industry and has two children.

__Non-anime roles:__
- Dainsleif - Genshin Impact (VG)

[Twitter](https://twitter.com/AndrewLoveVA)

Married to fellow anime voice actor [Emily Neves](https://anilist.co/staff/105073/Emily-Neves).