1boy, 2girls, @_@, aketa_mikoto, arm_support, formal, greyscale, hands_on_own_thighs, holding, holding_phone, idolmaster, idolmaster_shiny_colors, kaiyuugyo_(furafura_sunna), monochrome, multiple_girls, nanakusa_nichika, off-shoulder_shirt, off_shoulder, pantyhose, phone, producer_(idolmaster), shirt, simple_background, sitting, sitting_on_person, speech_bubble, sweatdrop, vest, white_background