1boy, 2girls, armpits, black_bra, blanket, blush, bra, breast_rest, breasts, breasts_on_head, cheating_(relationship), cleavage, collarbone, condom, condom_wrapper, empty_eyes, gameplay_mechanics, grey_hair, heartbeat, hetero, idolmaster, idolmaster_cinderella_girls, jougasaki_mika, large_breasts, lying, multiple_girls, on_back, on_bed, p-head_producer, pillow, ponytail, producer_(idolmaster), school_uniform, serebi_ryousangata, sexually_suggestive, shiomi_syuko, smile, speech_bubble, sweatdrop, trembling, underwear