Koga Iryuu

{{Character | Name        =Koga Iryuu | Image       = | Kanji       ={{ruby|伊|い}}{{ruby|龍|りゅう}} {{ruby|恒|こう}}{{ruby|河|が}} | Romaji      =Iryuu Kouga | English     = | Alias       = | Band        =SYANA | Position    =Vocalist | Instrument  = | Image Color =# | Birthday    =September 21 | Zodiac      =Virgo | Hometown    = | School      = | Year        = | Degree      = | Height      =178cm | Weight      =65kg | Likes       = | Dislikes    = | Hobbies     = | VA Kanji    =谷山紀章 | VA Romaji   =Taniyama Kishou
 * Voice Sample=

{{nihongo|Koga Iryuu|伊龍恒河|Iryuu Kouga}} is the vocalist of the band SYANA.

History
He is Nayuta Asahi's father. It was at SYANA's performace at the outdoor live that inspired Ren to start singing.

Etymology

 * The name Koga means "constancy" (恒) (kou) and "river" (河) (ga).
 * Koga's surname Iryuu means " Italy, that one " (伊) (I) and " dragon, imperial " (龍) (ryuu).