Female student Yan Muzhen went south to study in the new city and met her first love Tang Baishan.
They met in Tokyo that year when she traveled east to Japan. When the cherry blossoms were in full bloom all over the city, if there hadn't been a glimpse under the cherry trees, if her hat hadn't been blown off by the wind, and if he had said the words "Miss, can I invite you to dance" at the graduation prom that year, would it have been able to make up for all the regrets?
If time could go back, when he saw her again, he would definitely tell her: The second button is closest to the heart, and is given to the person I love. I love you. I want to hold an umbrella and build a bridge for you, and I want to warm porridge with you while the snow stops.
Concept: two-way secret love/ancient bloody love