1boy 1girl bangs blush couple darling_in_the_franxx eyebrows_visible_through_hair eyes_closed hair_ornament hairband heart hetero hiro_(darling_in_the_franxx) horns locked_arms long_hair long_sleeves military military_uniform monochrome necktie oni_horns oroneko red short_hair signature uniform zero_two_(darling_in_the_franxx)