1boy 1girl animal_ears arknights arm_up black_coat black_gloves black_necktie closed_mouth coat collared_shirt doctor_(arknights) expressionless female_doctor_(arknights) from_side gloves grey_eyes grey_hair hetero highres hood hood_up hooded_coat leopard_ears long_hair looking_at_another looking_down necktie rio_(rio773) shirt silverash_(arknights) white_shirt