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She accidentally met a robot. When she first met him, he had a look in his eyes that wanted to kill her. "Why are you so desperate for your life?" Later, after chatting with him, I discovered that as one of the greatest doctor's works, he still didn't understand some of his thoughts. "Just smile" "It's not like your factory design didn't have this." He was speechless facing her. They are all used to each other, but if one day they have to sacrifice one person to save the world, none of them can do it.