- Kaoru always has his hide plushy with him during lives. (Indies Period)
- Kaoru was injured while he was working part time at a race track.
- If asked what he needs more of in his life, Kaoru usually answers, "Gundam!"
- Kaoru is a Shiina Ringo fan.
- Dir en grey was afraid of Kaoru when they first met him!
- Kaoru use the fragrance Egoist Platinum.
- Kaoru is afraid to go on rollarcoasters. And he doesn't like scary movies.
- Kaoru has hide's autograph.
- Kaoru cannot swim.
- Kaoru loves getting underwear as a present. Mostly because he says he never has time to buy his own himself.
- Kaoru enjoys picking up the other band members. He picked up Kyo during the Osaka-Jo hall live, and Die at another, and Shinya at yet another. He has yet to pick up Toshiya.
- Kaoru claims that he has never been on a 'proper' date. He's gone out with girls before, but he doesn't consider them to be proper dates, because he can never decide where to take her out, so they end up not doing much of anything.
- When Kaoru was a teenager he got bored with his black hair and began slowly dying it brown. When his parents noticed and asked him about it, he told them that he was going to the swimming and the chemicals in the pool were doing it, which is funny, because Kaoru cannot swim.
- He was in tech club at and he make only 5 absence during his high school life!