Kawasemi is a member of Sanada Nyūdōunsai's pack, the Sanada Clan. Kawasemi is a close follower of Sanada Nyūdōunsai and acts as his right hand man.
He is black and white mixed breed. He have scar under the left eye and ball-sized patterns on his forehead and a beard.
He very rarely leaves his side and is always ready to fight for his friends.
He cares a great deal about Sanada Nyūdōunsai when he gets critically injured and wishes for him not to die.
Ginga Densetsu Weed: OrionEdit
He is first checking on his Lord's territory on the riverside then sees the 3 assassin brothers and got into a brief fight. Kōsetsu attacks him and two rolled into the river with Kawasemi's great swimming capabilities he gets away and reports to Unsai that an enemy clan had entered their home.
Kawasemi follows his lord to find them and when they do by the riverside. Kōsetsu tries to attack Unsai and hears him say they aren't interested in joining.
When the threat of Kurohabaki Masamune begins to stir, Kawasemi and Sanada Nyūdōunsai come across the son of Ou's leader, Orion and invite him to stay in their territory, to which Orion declines and leaves. Kawasemi follows Sanada Nyūdōunsai across Japan to help with the threat of Masamune and to assist the dogs who have fallen under his reign of terror.
After the threat is over he leaves with Unsai back to their land.
Ginga: The Last WarsEdit
Kawasemi is following Sanada Nyūdōunsai on a nightly patrol of their territory when they stumble onto Reika, her children and Jerome's son, Tonov. Reika explains the situation about Monsoon and the bears, and that both Gin and Weed have been hurt and need assistance. Sanada Nyūdōunsai instructs Kawasemi to gather the rest of the group so they can help the Ou Army.
When the United Army dog approaches the Ou and stops Kunimissa, Unsai's number four intelligence groups Futago-Pass for all compass direction. Kawasemi is part of another group east from the group consisting of Sirius and Rigel. At night Tsuyoshi runs over to the group by chance and is seeking Akame. Tsuyoshi initially thinks Sirius is Weed, but Kawasemi correct the misunderstanding. Tsuyoshi then asks Akame's whereabouts, in which case the other dogs to explain the situation to him.
Kawasemi, Rigel and Sirius jump to cluff. They meet Zion, Gennai and other dogs. They saw Monsoon and his kin. After Monsoon give Fuyuoni and Hiromitsu's dead bodies. Orion, Kawasemi saw Bob and Shirakaba, Orion attack Bear and Kawasemi attack Bob.
He and the other dogs arrive by the river, only to see it overflowing and raging. Kawasemi dives in to find Ken, using his elite swimming skills to traverse the current.
After Ken has been rescued, he continues the battle against the bears with his comrades and during the midst of the fight. He sees his Lord Unsai get injured by Monsoon and when the bears flee at the arrival of humans, Unsai collapses from his wound and is taken away for treatment. Kawasemi begs for his lord not to die with Gin, Weed, Akame and now Unsai not here and the rest of the soldiers not sure of what to do Kawasemi takes command of the army.
Kawasemi leads the army to Futago Pass and finds the rest of Monsoon's Kin, with the help of the hunters the rest of them are defeated. But the victory is short lived since Monsoon is still alive then he begins to notice a helicopter in the sky knowing that Monsoon won't return until the humans are gone. He sees Akame taken away for treatment due to his injuries.
Some time later he watches from a nearby hillside with his comrades as Daisuke and the people of the village bury their fallen allies and pays their respects. Daisuke comes with food for them as a reward and Kawasemi joins in the feast.
Kawasemi watches with the others as the Pet Dog Squad leaves and begins to see Orion become of age growing into an adult.
When Monsoon's Kin are dead and with Gin's return he tells them the passing of their friends they all sleep together for the night. When morning comes Kawasemi hears Kyoshiro chew Orion out for sending his friends away and then watches the fight by Orion and Kyoshiro even though the kishu lost. He saw Orion crying in tears saying that he stayed behind for the sake of everyone because the Ohu Army needs a true leader.
See more pictures in Kawasemi/Gallery