Yan Yichen (the male protagonist) has always had an object template that has been lingering in his mind for a long time. He has never noticed it until an accidental blind date, and he discovered that he has an indescribable closeness to such an ordinary girl (Wang Jiaxin)... After slowly getting in touch, he will be immersed in it. In such a love, I couldn't tell whether I was expressing my emotions to the old girl in my heart or to Wang Jiaxin. I slowly discovered that I had some obstacles hidden in my body. I couldn't tell if I liked someone in real life or the non-existent shadow in my heart. As time passed, Wang Jiaxin got tired of it. Even though he still liked this boy, he made his own concessions. In the long river of time, Yan Yichen no longer tortured himself and others. Maybe he could have a good love like an ordinary person and read his own heart clearly... Day after day, he decided to use the whole month (relatively long, absolutely short) to find the girl he likes.