She changed the day and night several times, and tried her best, but she could not forget her love for thousands of years; she was the sister she desperately protected, so why should she take away her happiness without mercy? Twenty years ago, she was childish and ignorant and escaped the disaster of life and death. Twenty years later, she went round and round and returned to the starting point, and again Facing a catastrophe, she is still safe; she has conquered the country and the city, and has been in love for thousands of years. She lives and dies because of lovesickness... When they experienced everything and looked back, they discovered that the endings were destined. What changed was the process, and what remained unchanged was the result...