In 3112, the earth was destroyed by a nuclear radiation. In the same year, Su Hang was born in a spaceship wandering among the stars. Her knowledge of the earth was limited to books and word of mouth from her elders. However, fate brought her back to Earth with a mission. When she saw the branches with flowers, she was delighted... When she saw the endless ocean, she was surprised again... Later, when she saw the handsome guy who survived on the earth, she was even less calm...