1girl, ahoge, bare_shoulders, breasts, brown_eyes, brown_hair, collarbone, dated, dress, frilled_dress, frills, hair_down, hand_on_own_arm, happy_birthday, huge_ahoge, idolmaster, idolmaster_shiny_colors, kuwayama_chiyuki, large_breasts, long_hair, sleeveless, sleeveless_dress, smile, solo, takani0721, teeth, upper_body, white_dress