1girl black_bow black_ribbon blue_eyes blue_hair blush bow breasts cleavage closed_mouth detached_sleeves dutch_angle eyelashes frills hair_ornament hair_over_one_eye hair_ribbon hand_on_another's_head happy kotatsu_(kotatsu358) light_particles looking_at_viewer maid medium_breasts one_eye_covered out_of_frame purple_ribbon re:zero_kara_hajimeru_isekai_seikatsu rem_(re:zero) ribbon ribbon_trim short_hair smile solo_focus underbust upper_body white_background white_bow x_hair_ornament