1girl, ahoge, bad_pixiv_id, blush, bodysuit, breasts, closed_eyes, controller, covered_navel, futon, game_controller, greyscale, handheld_game_console, indoors, jacket, jersey, koyuki_(kotatsu358), lens_flare, long_hair, lying, monochrome, neet_de_otaku_na_kunoichi_to_naze_ka_dousei_hajimemashita, ninja, on_back, pillow, saliva, scratching_stomach, shizuri_(neet_de_otaku_na_kunoichi_to_naze_ka_dousei_hajimemashita), sidelocks, skin_tight, sleep_bubble, sleeping, solo, track_jacket