Lin Hehan and Shen Lanshan were neighbors. They had lived in the same village since childhood. They originally thought they would live happily together forever, but Lin Hehan had to leave because of his mother's job transfer. However, they still exchanged letters between them. At first, Lin Hehan only regarded Shen Lanshan as his sister, but as the two grew older, the bud of love sprouted in his heart.
Purpose: Love will break the darkness