Koukin Shuuyu is the cousin of Hakufu Sonsaku and a fighter for Nanyo Academy.
He appears to be a polite and well meaning person but is often caught in embarrassing situations with his cousin. Koukin is a decent fighter but often gets defeated when he fights and usually ends up being saved by Hakufu. He is often used for comic relief despite being a fairly serious character.
For the first anime series Ikki Tousen: Battle Vixens, Koukin Shuuyu was
voiced by Ted Sroka. Battle Vixens was licensed by Geneon
the English dub was produced by New Generation Pictures. Funimation
Entertainment currently has the
license for distribution.
For the second anime series Ikki Tousen: Dragon Destiny, Koukin Shuuyu was
voiced by Ted Lewis. Dragon Destiny was licensed by Media Blasters
and the English dub was produced by
Headline. Media Blasters
choose not to rehire the New Generation Pictures cast and created a
new English dub with local New York City talent.