Xi Ling and Lin Zhen were students at the same university. Since they were both from K City, it was not clear whether it was due to their kindness to fellow villagers or the attraction of their personalities. They quickly got together. However, they do not live happily together as described in fairy tales. In reality, there are often a lot of helplessness and forcedness, some of which come from the outside world, and most of which come from their own hearts. If life gave you a chance to choose, would you ask it to start over, to contain a possibility before it begins, to bite the bullet, and not to let the tragedy happen again: Or in fact, the result will not be different. What we desperately try to prevent is not the nature of the thing, but the time. We cannot change its occurrence. We work so hard, but in the end it just makes the ending come later.