A physicist involved the development of nuclear weapons for Isao&#039;s organization. However, despite Isao&#039;s plans to achieve Pan-Asianism with the threat of mass destruction, Ichinose is unable to create an actual working atomic bomb, struggling over the mathematical formula require for the detonation mechanism.

The year is 1931. The city is Shanghai. Ten years before America will enter World War II, the hydra's teeth planted by the first great global conflict are beginning to germinate. Hatching like spiders, they weave the complex web of plots and conspiracies destined to inevitably draw entire nations to the brink of destruction. Caught in the heart of these webs, desperately seeking to separate lies from truth, is "Sakurai Kikan," an ultra-secret intelligence agency staffed by extraordinarily talented individuals with abilities far beyond those of normal humans. Their duty: to stop the darkest plots and eliminate the greatest threats. But in a city built on intrigue, can even a team of clairvoyants, telepaths and espers stand against the ultimate forces of destiny?<br><br>
(Source: Sentai Filmworks)

__Awards:__ Best New Actor (2008), Best Supporting Actor (2011)
__Music:__
- Palette (1st Mini Album, released May 23, 2012)
- Enjoy☆Full (2nd Mini Album, released June 5, 2013)

[Profile (Racoon Dog)](https://www.raccoon-dog.co.jp/talent/m01-okamoto.html
) | [Blog](https://lineblog.me/nobuhiko_okamoto/) | [Old Blog (Inactive)](http://blog.livedoor.jp/okamoto_teki_fukei/) | [Twitter](https://twitter.com/ok_nobuhiko) | [Instagram](https://www.instagram.com/nobuhiko_cacao/) | [Wiki (en)](https://en.wikipedia.org/wiki/Nobuhiko_Okamoto) | [Wiki (jp)](https://ja.wikipedia.org/wiki/岡本信彦)

- Revealed as the sixth member of Kiramune on October 24, 2011; debuted on May 23, 2012.
- Hosts Dengeki Girl's Smile with [Ryouhei Kimura](https://anilist.co/staff/96762/Ryouhei-Kimura)
- Married to fellow seiyuu [Asuka Oogame](https://anilist.co/staff/102489). 

Previously affiliated with the agency Pro-Fit. After the agency announced that they would be shutting down operation in 2022, he would be transferring to his own agency "Raccoon Dog", along with several other Pro-Fit talents.