He's a black dragon, and the fiancee of Rose. Onyx desires power, and he will do anything to obtain it.

A normal high school boy Kisaragi Ryuji's peaceful life is turned into an adventure by the return of his second cousin Eriko. Ryuji and Eriko seize a relic box from a black broker. In the box, they find a red dragon girl Rose. In order to protect Rose from the black organization, Ryuji decides to fight using his power as a relic handler.

**Height:** 167 cm (5'6") 
**Other:** Named his cat "Nyanko-Sensei" 
**Agency:** Aoni

[Profile](https://www.aoni.co.jp/search/kamiya-hiroshi.html)

On January 1st 2025 it was announced that he had gotten married to actress and gravure model Rina Aizawa.

**Awards:**
- 2008-03: Best Supporting Actor, 2nd Annual Seiyuu Awards
- 2009-03: Best Lead Actor and Best Personality, 3rd Annual Seiyuu Awards
- 2012-03: Most Votes Award, 6th Annual Seiyuu Awards
- 2013-03: Most Votes Award, 7th Annual Seiyuu Awards  

Hosts several radio talk shows, including Dear Girl ~Stories~ with Ono Daisuke. In May 2010, he and Miyu Irino formed a Kiramune unit called KAmiYU, and sang the theme song for Mokei Senshi Gunpla Builders Beginning G.  Their first mini-album "link-up" was released on August 3, 2011.

__Non-Anime Roles:__
- Neuvillette in Genshin Impact
- Shou Ronpo in Uchu Sentai Kyuranger
- Madrex in Bakuage Sentai Boonboomger