vocaloid
gumi, hatsune miku, kagamine rin, megurine luka, meiko (vocaloid)
seiyoukun
5girls, armpits, arms behind back, blue hair, breasts, brown hair, censored, cleavage, convenient censoring, gradient hair, green hair, long hair, medium breasts, multicolored hair, multiple girls, music, musical note, navel, nude, open mouth, pink hair, short hair, singing, small breasts, thigh gap, twintails
absurdres, bad id, bad pixiv id, highres