1girl alternate_costume balloon beret blue_eyes boots box brown_hair dress earrings eyebrows_visible_through_hair flower gift gift_box hat heart heart_earrings high_heel_boots high_heels idolmaster idolmaster_cinderella_girls idolmaster_cinderella_girls_starlight_stage jewelry medium_hair nail_polish necklace official_art ribbon sakuma_mayu turtleneck window