In the summer of 2019, Hua Jiayi and Rong Yunjing met, and the story that belonged to them began to be written: If there is no eternal love, if the perpetual motion machine will violate the law of conservation of energy, I will use notes to write down our story and write out the eternity of that moment... It is a pity that the story in the book is too plain, and the us in the pen are the eternal ending.
Purpose: To mourn my lost youth