Biography
青い三角定規
Effective period / Period of releases: 1972
Members: Mari Takada, Kumiko Nishiguchi, Shigeru Iwaku
Aoi Sankaku Jōgi (青い三角定規, lit. "Blue Triangle Ruler") or Blue Triangle.0:00
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Effective period / Period of releases: 1972
Members: Mari Takada, Kumiko Nishiguchi, Shigeru Iwaku
Aoi Sankaku Jōgi (青い三角定規, lit. "Blue Triangle Ruler") or Blue Triangle.