mika
Gender: Female
Height: 147cm
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She is the drummer for the BanG Dream! project band Morfonica, and was also the drum instructor for Roselia's Sakuragawa Megu and Poppin' Party's Ohashi Ayaka.
mika has played the drums ever since she was 16. When she was 18, she moved to Tokyo and entered ESP Musical Academy (ESPミュージカルアカデミ). After graduating, she became a drum instructor.
(Source: BanG Dream! Wikia, edited)