1boy, 1girl, o, @_@, bad_twitter_id, bed_sheet, bikini, black_bikini, blonde_hair, blue_eyes, blush, breasts, cleavage, collarbone, full-face_blush, hachimiya_meguru, heartbeat, hetero, holding_another's_wrist, idolmaster, idolmaster_shiny_colors, large_breasts, looking_at_viewer, lying, on_back, steam, sweatdrop, swimsuit, upper_body, ushizara