otoyuu, hatsune miku, hatsune miku (saihate), kagamine len, kagamine rin, kaito (vocaloid), kamui gakupo, megurine luka, meiko (vocaloid), saihate (vocaloid), vocaloid, bad id, bad pixiv id, 3boys, 4girls, aqua hair, black dress, blonde hair, blue hair, cloud, dress, formal clothes, hair ribbon, instrument, long hair, multiple boys, multiple girls, piano, piano bench, pink hair, purple hair, reflection, reflective water, ribbon, scarf, short hair, skirt, skirt suit, sky, suit, twintails, water, water world