1boy 1girl bare_shoulders blush body_writing breasts coat covered_nipples curvy earrings exhibitionism flashing formal greyscale hair_behind_ear highres jewelry large_breasts long_hair looking_to_the_side mask monochrome mouth_mask open_clothes open_coat original out_of_frame outdoors public_indecency sashizume_soutarou shirt sleeveless sleeveless_shirt standing suit thong