Hiroo Yamaguchi
山口寛雄
Birthplace: Nagasaki Prefecture, Japan
Nickname: ヒロくん (Hiro-kun)
Hiroo Yamaguchi is a Japanese bassist, lyricist, composer, arranger and member of the band 100s (Hyaku-Shiki)
山口寛雄
Birthplace: Nagasaki Prefecture, Japan
Nickname: ヒロくん (Hiro-kun)
Hiroo Yamaguchi is a Japanese bassist, lyricist, composer, arranger and member of the band 100s (Hyaku-Shiki)
