How Deep Is the Red Wall, and the Tung Flowers Bloom for You?

It tells the love story of Zhu Youxiao and Zhang Yan, from their acquaintance after the election to the seven years of falling in love and knowing each other, as well as Zhang Yan's reliance on Zhu Youxiao, and later the seventeen years that Zhu Youxiao relied on the evergreen lantern to protect Zhang Yan. It is the sincerity of the relationship.