1girl, 2023, blunt_bangs, blush, bouquet, breasts, character_name, clothing_cutout, dated, dress, eating, floral_background, flower, frilled_dress, frills, grey_hair, hair_intakes, happy_birthday, holding, holding_bouquet, idolmaster, idolmaster_(classic), idolmaster_million_live!, large_breasts, looking_at_viewer, looking_back, see-through, see-through_sleeves, shijou_takane, shiro_(ongrokm), shoulder_cutout, smile, solo, twitter_username, white_dress, white_flower