Kisaragi is the highest commander of "The Four Heavenly Kings of Mutsu." He leads a pack of 360 dogs in Mutsu with his brothers Uzuki, Minazuki, and Hazuki. Their goal was to have the biggest pack in Japan.
Kisaragi is a black-and-white Siberian Husky with blue eyes (sometimes orange eyes). He has white markings over his eyes and distinctive stripes on his chest and cheeks.
Kisaragi is an ambitious and slightly overly confident dog, seeing himself as a great leader. Kisaragi is quite cunning and smart in the battle.
Kisaragi blinds Terry and then decides to leave him peace, though his brothers would like to kill him, showing the difference of their ways of thinking. Unlike his brothers, he respects Terry's bravery and buries him.
Kisaragi also loved his sons a lot and mourns deeply after finding out that they were killed by bears, swearing to avenge their deaths. He blames himself for Terry's death and feels guilt from killing such a great male as Terry was.
In Ginga Densetsu Weed, Kisaragi is an older and much friendlier and calmer dog. He has many sons and he loves them a lot, and is very proud of them. He is deeply ashamed of his past self and still blames himself for Terry's death.
Ginga Nagareboshi Gin
Kisaragi and his brothers capture Moss, and his part of the group in a volcano. They try to see if the heat can break their loyalty to their boss and make them join them. Ben tries to rescue Moss, but Terry seems to have betrayed Riki, and joined Kisaragi.
Terry grips Ben by his neck and whispers that he is still loyal to the Boss, but he is forced to work under Kisaragi as he throws Ben into the volcano. Uzuki heard Terry, and as Terry tries to rescue Ben, Kisaragi challenges him.
In the fight, Kisaragi scratches out Terry's last eye. He then refuses to give up and throws himself against Kisaragi who easily jumps over him, making him rush straight into the claws of a bear.
As Kisaragi's and Ben's groups fight, the bears appear of the top of the volcano and throw Terry's dead body down it.
Filled with anger, Ben's group fearlessly attacks the bears to avenge their fallen Platoon Leader. Kisaragi is amazed by their courage and joins the group. They defeat the bears but sadly his sons were killed in battle. He joins Ouu's forces to avenge the death of his children.
Kisaragi and his brothers survive the final battle against Akakabuto and return to Mutsu.
Ginga Densetsu Weed
Kisaragi hardly appears in Ginga Densetsu Weed.
He appears when Shigure comes to ask for help. Sadly he lets his sons go to war, after admitting that he too was once violent and fought for territory. He still feels guilty because of Terry's death. After the battle against Hōgen ends, he is glad to have his sons back and healthy.
Later, he sends out his sons to help Hakuro when the dog, Viktor, invades Hokkaido. Kisaragi first appears when Shigure helps his sons defeat a bear. As they kill it, Kisaragi appears and takes Shigure back to his cave to get some rest.
Outside, he rethinks the events of how Terry died and he shows regret. Izou goes outside and tells him he wants to go to Ohu to help fight off the invading army. Kisaragi sheds tears at the thought of his children in a war but is very proud of them nevertheless. He revelas to Izou that the other three leaders died long ago.
Ginga Densetsu Weed: Orion
Kisaragi and his sons have been living in the cave of a bear they killed. While his sons have left to go to Ōu, Kisaragi hears someone. Believing it to be his son Shūsaku, he finds out it's a platoon of Kurohabaki Clan lead by Masashige.
Kisaragi tries to hop out of the cave to face the invaders, but fails due to his age. While he is hanging half way out of the cave, the Kurohabaki dogs surround him and rip big chunks out of his neck and throat, wounding him fatally.
Masashige then pushes Kisaragi back to the cave where the Husky quickly dies to blood loss.