At the beginning of the story, during the escape of youth, Jiang Ye was Lin Zhixia's "sword", teaching her how to pierce the hypocritical reality; Lin Zhixia was Jiang Ye's "shield", protecting the remaining softness and innocence in his heart.
At the end of the story, they may still bear the scars of their original families, but they are no longer the two incomplete teenagers they were before. They have become two independent, strong and affectionate adults, which is the best gift of growth they can give each other.