1boy 1girl belt black_hair bound breasts brown_skirt butterfly_hair_ornament cleave_gag cloth_gag collared_shirt colored_tips douma_(kimetsu_no_yaiba) eye_contact finger_to_mouth flipped_hair forked_eyebrows from_side gag gagged green_necktie grey_hair grey_pants hair_ornament hamiko_(hakogardenmiko) highres holding_another's_wrist improvised_gag index_finger_raised indoors kimetsu_gakuen kimetsu_no_yaiba kneehighs kochou_shinobu leaning_forward light_particles long_sleeves looking_at_another looking_away miniskirt multicolored_hair necktie night pants pleated_skirt profile purple_eyes purple_hair red_shirt restrained school_uniform shirt short_hair shushing sidelocks sitting skirt sleeves_rolled_up smile socks standing streaked_hair sweat sweater twitter_username updo white_shirt white_socks wide-eyed wooden_chair yellow_sweater