|Appears in||Anime, Manga, Game|
|Kekkei Genkai||Lava Release|
|Tailed Beast||Son Gokū(Flamemasterjoy) (Forms)|
Kaoru was born into Yōkōgakure with two shinobi parents. When he was seven years old, the four tails was sealed inside of him. Four years after this he learned how to control him. He later became a good friend of Nanami.
Kaoru is a very calm and collected person, staying calm in the most situations. He is even calm in battle as seen when he fought Tsubasa.