akiba meguru, aoba tsugumi, hibiki daitetsu, kimura takako, mikuriya jin, nagi, ookouchi shino, zange, kannagi, absurdres, highres, huge filesize, official art, 00s, 3boys, 5girls, m/, armpits, blonde hair, blue hair, brown hair, casual one-piece swimsuit, conductor baton, drum, elbow gloves, everyone, flute, formal clothes, frills, gloves, guitar, hairband, instrument, long hair, microphone, microphone stand, multiple boys, multiple girls, one-piece swimsuit, purple eyes, purple hair, red eyes, red hair, short hair, siblings, sisters, suit, sunglasses, swimsuit