1girl, d, black_bra, black_ribbon, bra, breasts, cleavage, collarbone, front-tie_bra, futon, grey_hair, hair_between_eyes, half-closed_eyes, kawagishi_keitarou, kawakami_momoyo, large_breasts, long_hair, looking_at_viewer, lying, maji_de_watashi_ni_koi_shinasai!, on_back, open_mouth, pillow, red_eyes, ribbon, smile, solo, straight_hair, tatami, underwear, upper_body, very_long_hair