Mamiko Oumae
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Gender: Female
Kumiko's older sister. She is a college student and was a trombone player in a brass band. She taught Kumiko to use a mouthpiece when she was a child.
Gender: Female
Kumiko's older sister. She is a college student and was a trombone player in a brass band. She taught Kumiko to use a mouthpiece when she was a child.