ishibashi yosuke, frederica (z/x), z/x, official art, 1girl, beamed eighth notes, blue hair, breasts, colored inner hair, copyright notice, crab, eighth note, hat, holding, holding microphone stand, large breasts, medium hair, mermaid, microphone stand, monster girl, multicolored hair, music, musical note, navel, open mouth, pink hair, quarter note, shirt, singing, solo, sparkle, teeth, underboob, upper teeth only, white hat, white shirt