3boys, ahoge, akizuki ryo, blue eyes, blue sky, bow, bowtie, brown eyes, brown hair, clenched hands, f-lags (idolmaster), fingernails, hair over one eye, idolmaster, idolmaster side-m, idolmaster side-m growing stars, kabuto daigo, long sleeves, male focus, multiple boys, official art, open clothes, open shirt, orange hair, outdoors, pink hair, running, sky, smile, teeth, third-party source, tsukumo kazuki, undershirt