Lu Lihuan always thought that she liked Yu Linshen more than Yu Linshen liked her. But Lu Lihuan forgot that in the world of love, no one has more than anyone else, and everyone is fair. Many years later, Lu Lihuan sighed in Yu Linshen's arms that youth is fleeting, but Yu Linshen just smiled and said: "Youth is fleeting, it has given me the best. What is fleeting is the emotions we do not cherish properly." Suddenly, Lu Lihuan remembered the unheard love letter: You are the clear spring in the mountains, the bright moon at night, the white snow, and the awakening of insects in dreams. I love you forever across mountains and seas. What you think of is across mountains and seas, but mountains and seas cannot be leveled. [Male and female protagonists are dual academic masters. No abuse or abuse, so feel free to enter the trap.