1girl aged_up black_hair blush car_interior christmas city_lights collarbone commentary_request diffraction_spikes earrings hairband hand_on_own_wrist happy_tears jewelry kentaurosu long_hair long_sleeves looking_at_viewer looking_to_the_side marriage_proposal matsuno_chiya necklace night night_sky original red_eyes ring sky smile solo tears upper_body wedding_ring white_hairband