Rule 34 Dev - 1girl balloon beach breasts brown_eyes brown_hair chair cleavage cloud corset english_text flower game_cg hair_ornament idolmaster idolmaster_cinderella_girls idolmaster_cinderella_girls_starlight_stage jewelry medium_breasts mizuki_seira navel necklace official_art open_mouth outstretched_arms sand skirt solo water|22158748404