The story centers on a woman who is getting on in years, but all her cats think she's a man so they call her Ojii-chan. One day a brazen cat named Tsushima appears in Ojii-chan's yard.

__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.

Web anime of Ore, Tsuhima that is concurrently released during the TV shorts' broadcast, streamed on the Asmik Ace YouTube Channel. 
One day, “Ojiichan(woman)” who likes cats meets a talking(?) cat on the street! 
The name of the brazen cat who was originally a stray cat is “Tsushima.” “Zun,” Ojiichan’s house cat, “Chaa,” who’s spoiled and cowardly, and “Osamu,” a self-centered gangster cat have already been living in Ojiichan’s house, and Tsushima now lives together with them in peace.
Wanna take a look at the wild life of Tsushima and Ojiichan that’s filled with love for cats? 
 
(Source: YouTube video description)

The manga centers on a woman who is getting on in years, but all her cats think she's a man so they call her Ojii-chan. One day a brazen cat named Tsushima appears in Ojii-chan's yard.