Kōga Clan

The Koga dogs are a clan of fierce, made up breed of shinobi dogs, renown for their agile, speed, and strength. Led originally by Kurojaki in Ginga Nagereboshi Gin, eventually the leadership passes to his son Tesshin in Ginga Densetsu Weed. The Koga clan has a warring history with their rivals, the Iga clan.

Kogas in Ginga Nagareboshi Gin

The Kogas are an ancient shinobi dog clan. They originally had human masters who eventualy died out and the dogs were left alone in wilderness. They're mortal enemies of Akame and the other Iga shinobi dogs in their mission to steal ancient scrolls from the Iga dogs.

They're currently cannibalistic in nature from the order of their leader Kurojaki. Kurojaki believes that eating their opponents will make them stronger.

Koga Clan (GNG manga)

The Kogas first appear when a one throws a piece of dog meat for a hungry Hyena. The Kogas disappear when Gin and others show up. Hyena starts to eat the meat, not knowing its origin, but Smith tries to take it away from him but eventually lets him eat. Akatora reveals that the flesh is dog meat which causes Smith to puke behind a tree. This ugly truth also shocked Hyena that he felt sick. The Kogas had been spying on the dogs for long and fled from the scene. However, the only Koga dog whom Gin had caught was Maya who faked his death from his head injury to the Ohu Soldiers. 

Koga Clan (GNG anime)

After the Ohu Soldiers were gone, Maya got up and rushed to Kurojaki to reveal the plans.In the end, at the final battle the Kogas were defeated by the Igas with the help of Gin and the Ohu Soldiers and they resigned to their fate - to join in with the Ou Soldiers. However, Kurojaki was distraught with the defeat and the burning Iga house (which Akame set on fire) that he committed suicide by jumping to the flames. Soon after that, the Kogas decided to follow their leader and were burnt to death. Akame describes their deaths as honorable for ninjas because they died for the mission. Only one Koga is shown to have survived the fire who is Chourou, who in GDW seems to have taken over leadership for some time before Tesshin takes over.

Kogas in Ginga Densetsu Weed

Koga Clan (GDW anime)

The Kogas also appeared in the sequel but this time, they are a different generation of Koga Dogs who are led by the kindhearted Tesshin and are shown to have more of a peaceful nature even though in the manga when Weed arrives in koga territory with the others Chourou disapproves and wishes for Tesshin to fight against Weed but he refuses. In the anime, their fur is coloured black and grey, while the manga colours still are red-brown.

Other than fighting alongside with the Ou Soldiers to defeat Hougen, the Kogas were also spied on the enemies and send their messages to Tesshin or Weed during the Russian Dog invasion at Hokkaido.

Koga Dogs in Ginga Densetsu Weed

List of Koga Dogs in Ginga Nagareboshi Gin and Ginga Densetsu Weed

• Kurojaki - Leader of the Kogas in GNG, and father of Tesshin. He was also the enemy of Igas' leader, Akame.
• Maya - one of the subordinates who pretended to be dead in GNG
• Tesshin - Son of Kurojaki. Previously known as Chibi in GNG, was taken as a hostage by the vengeful Wilson and was later saved by Cross after being accidentally knocked off the cliff by the enraged Kurojaki. After the Kogas defeat, Chibi was adopted by the Ou Soldiers who later grew up as a wise, kindhearted soldier and was renamed as Tesshin. Tesshin takes over as a leader of the new generation of the Koga clan.
• Chourou - In the manga, he is an old Koga dog who previously has a deep grudge against Gin, Weed and any Ou Soldiers, he is also hairless and scarred due to surviving from the fire. In the anime version, his scars and hatred are absent.
• Toshimitsu - One of the Koga dogs from GDW
• Sikikage - One of the Koga dogs from GDW
• Samu - One of the Koga dogs from GDW
• Shinbe - A Koga dog from GDW who was killed by the Bozlef's soldiers in Hokkaido arc.