Aooo

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A Japanese four-piece rock band . The band name comes from the fact that the members' blood types are A, O, O, and O.

Members:

• Riko Ishino (石野理子) – vocals, guitar, keyboard
• Surii (すりぃ) – guitar, chorus
• Hikaru Yamamoto (やまもとひかる) – bass, chorus
• Tsumiki (ツミキ) – drums