1boy, 1girl, :<, =3, aged down, blanket, blush, book, capelet, cello, closed eyes, closed mouth, collarbone, cousins, detached wings, dress, eighth note, fingersmile, greyscale, halo, holding, holding blanket, holding book, holding bow music, holding cushion, instrument, jacket, long hair, long sleeves, looking at another, monochrome, multiple views, music, musical note, neck ribbon, object hug, open book, playing instrument, reading, ribbon, shirt, short hair, shorts, spoken musical note, v-shaped eyebrows, wings