3boys, balloon, black hair, bow, bowtie, brown hair, buttons, fingernails, hat, himeno kanon, holding, holding microphone, idolmaster, idolmaster side-m, idolmaster side-m growing stars, male child, male focus, microphone, mofumofuen (idolmaster), multiple boys, official art, okamura nao, open hand, open mouth, palms, party hat, purple eyes, rainbow, shoelaces, shoes, shorts, smile, stage, stuffed animal, stuffed panda, stuffed toy, tachibana shiro (idolmaster), teeth, third-party source, undershirt, upper teeth only