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Motomi Tsukinaga (月永 求 Tsukinaga Motomi) is a new first-year at Kitauji High School. He joins the band as a contrabass player in Kumiko's second year.
Tsukinaga is a teenage boy with fair skin, and aqua, teal eyes. He has short black hair with the front of his hair parted at the right.
- His favorite colors are greenish brown and thin yellowish green.
- His hobbies are studying astronomy and building dioramas.
- His apparent talent is his ability to daze off for hours.