한 Ryuji Ryuji (リュウジ) is a South Korean Male Artist(Born in Japan). He started in group KO1KEYZ. Read All General Information International Stage Name : Ryuji Domestic Stage Name : リュウジ Full Name : Sugiyama Ryuji Full Domestic Name : 杉山竜司 Date of Birth : 2006-07-07 (age 20) Zodiac : Cancer Country of Birth : Japan Related Artists : KO1KEYZ Original group : KO1KEYZ Images