1girl, d, arms_behind_back, black_bra, black_panties, blue_hair, blush, bra, breasts, c_(theta), cleavage, collarbone, doorway, idolmaster, idolmaster_million_live!, large_breasts, light_particles, looking_at_viewer, navel, open_mouth, panties, short_hair, smile, solo, stomach, toyokawa_fuka, underwear, underwear_only, yellow_eyes