A mysterious letter attracted her to find the truth when she was fifteen years old. Luo Xi, who had been dependent on her mother since she was a child, had to travel through time and space to find the things the mysterious man said in order to cure her mother's illness. But when she tried her best to uncover the truth, she discovered that it was just a corner of a huge battle. It turned out that the truth was like this...
Mission: Eternal love