himesaki rinami, shiun sumika, and arimura mao (idolmaster and 2 more) drawn by kinnzoku

3girls arimura_mao arm_garter ball beach beachball bikini blush bracelet breasts brown_hair chibi commentary_request earrings eyewear_on_head gakuen_idolmaster highres himesaki_rinami idolmaster jewelry kimi_to_semi_blue_(idolmaster) kinnzoku large_breasts long_hair looking_at_viewer milestone_celebration multiple_girls necklace official_alternate_costume orange_hair pink_hair playing_sports shiun_sumika signature smile solo_focus song_name swimsuit translation_request twitter_username very_long_hair white-framed_eyewear white_bikini