A high school sophomore who is also a young swordsman and has moved away from his mountain life to live with the Ikaruga family in the city. He is a very active person who actively enjoys martial arts with swordsmanship in particular. Due to his early childhood in the mountains with his father, he does not know the current customs in Japan or to act around a girl. He is very honourable, which is shown when he addresses everyone with the -dono honorific. However, due to constant misunderstandings, Ibuki, in particular, constantly attacks him under the assumption that he had done something perverted. He is usually seen wearing a Japanese martial arts uniform and a wooden sword. He is a freeloader at Ikaruga Dojo and is a student of the Ukiha Kamikaze Swordplay (Soaring Wind, Divine Wind Style). He attends the private school Yoku-Ryou Gakuen with Ibuki and Ayame, and he's in the same class as Ibuki and Washizu. He recently was forced to join the Acting Club, and was initially paired with Ibuki to play the main hero and heroine of a love-play. But Ayame took over Ibuki's role afterwards, so she could get closer to Yoichi. He always gets nosebleeds after doing or seeing something perverted, usually the latter. It is hinted that he has feelings for Ibuki.  (Source: Wikipedia)

His skill with a sword is magnificent but his social skills still need a lot of work! 
After many long years perfecting the art of fighting, 17-year-old Yoichi Karasuma is sent down from the remote mountains where he has been raised thinking that he's going to study some new martial arts techniques... but what he's really going to learn about are some slightly more practical things, like electrical appliances, modern clothing and, most especially, how NOT to make girls want to kill you! 
Unfortunately, that last lesson is one Yoichi may not survive, as his new dojo is infested with the infernal creatures in the form of the Ikaruga sisters, and they don't really seem to understand how "proper" girls are "supposed" to behave! Will Yoichi's bushido blade be struck down by the fearsome charms of Ibuki, Ayame, Chihaya, and Kagome? Or will the equally lethal girls from the rival Tsubame school be his undoing? 
(Source: RightStuf)

__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.

A boy trained by his father in the way of the "Ukiha Kamikaze" swordplay, Yoichi, has lived in the mountains, far from civilzation for all seventeen years of his life.  His father finds nothing more to teach him, and sends him to the city to lodge at the Ikaruga dojo to further his mental and physical capabilities. Four sisters live in the dojo and Yoichi begins a new more severe "training" regimen.