Introduction: The heroine Su Li is a senior officer/scientist of the Interstellar Federation from 2500 AD. During a decisive battle with the powerful alien civilization "Reaper", due to the accidental explosion of the time experimental device, her soul consciousness traveled back to 2019 and possessed the body of a girl of the same name who was taking the college entrance examination. She has a complete knowledge system of the future, military tactical thinking and enhanced spiritual awareness.
