A retired assassin with a comical bad sense of direction. Despite being considerably older than the rest of the cast he retains a muscular build with scruffy facial hair and scars all over his body. Due to his years of experience as a gangster he remains calm under pressure. He has a long-standing friendship with Kiri, the owner of the local restaurant and former prostitute. Although it is unknown if they previously had sexual relations they remain firm friends. Ten years prior to the start of the story he was a hired gun for a mobster and became mentor to the boss' son, a psychologically disturbed young man named Ian. At that time Mihai was romantically involved with a prostitute named Milena, but the relationship ended when Ian grew into his teens and brutally murdered her after intercourse. During the story of Dogs, Mihai has confronted Ian and failed to protect him during an assassination attempt. He has since aided Badō escape from gangsters, and in recent chapters he is protecting the passengers of a derailed train from the advancing army of unknown assassins, while trapped in an underground tunnel.

Badou's in trouble again. He's found some of the "Lost Children," rare genetic experiments left from the past--but so has the mafia. It's up to Heine to bail him out, but the Stray Dog has his own problems now that the enigmatic Giovanni is back on the scene. Meanwhile, Naoto comes to the Underground searching for the killer who wields the same strange black sword as hers. And so their paths begin to converge in the dark and dangerous heart of the city...
 
(Source: Viz Media)
 
Included one-shot: 
Volume 2: Dogs: Hardcore Twins

In a future European city, Mihai Mihaeroff, a former assassin; Badou Nails, a chain-smoking one-eyed mercenary; Fuyumine Naoto, a katana-wielding female orphan; and Heine Rammsteiner, a genetically altered albino gunman, ply their deadly trades on the streets and in the underground. 
 
Note: The first anime volume shipped in Japan with the fourth volume of Miwa's Dogs: Bullets & Carnage manga on May 19, 2009. The second anime volume shipped with the Dogs: Stray Dogs Howling in the Dark manga volume on July 17, 2009.

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Son of voice actor [Chikao Ootsuka](https://anilist.co/staff/95974/). In 2005, he married fellow voice actress [Youko Soumi](https://anilist.co/staff/95912/), but they divorced in 2009.

__Non-Anime Roles:__

- Heismay Noctule - Metaphor: ReFantazio (VG)
- Koichi Adachi - Yakuza: Like a Dragon (VG)

In a post apocalyptic world devoid of seasons, where man's "golden age of technology" ruined earth and caused science to run amok, there live four individuals looking for a door to the hell far below the surface. Through a series of coincidences, the ex-hitman-now-bartender Mihai, the deranged and psychopathic Haine, the vengeful yet kind Naoto, and the freelancer Badou meet one another.