2boys alternate_costume aoi_kyosuke aoi_yusuke back-to-back bad_id bad_twitter_id brothers clenched_hand cloud glasses grin hat headset idolmaster idolmaster_side-m leg_up looking_at_viewer male_focus multiple_boys navel orange_eyes orange_hair sailor sailor_collar sailor_hat sailor_shirt shirt shorts siblings smile string_of_flags striped striped_shirt stuffed_animal stuffed_seagull stuffed_toy twins uzuki_(sxk_uxk) w_(idolmaster) wrist_cuffs