From 1922 to 1937, Nanjing was in turmoil.
Su Lingyi, the legitimate daughter of an aristocratic family, met Gu Shenzhi, a scholar from a poor family, because of a poem manuscript, and they wrote letters to confirm their love.
Family status is like a wall, the family forces marriage, and others frame it.
The two fell in love and separated in troubled times, suffering misunderstandings and suffering.
War flames broke out everywhere, mountains and rivers were shattered, they used rulers to convey their hearts, and were finally separated in life and death when the city of Nanjing was destroyed.
More than a hundred old letters were reduced to the last remaining writings in troubled times.
Decades later, Xu Zhiwei, a used bookstore owner who was deeply confused in life, accidentally opened the red sandalwood letter box.
In the process of exploring the love and hate of her ancestors, she was healed by the deep love and perseverance in the notes, and completed her self-salvation.
At the same time, modern power is used to bring a happy ending to the broken relationship and achieve intergenerational redemption.
A piece of paper ruler connects the joys and sorrows of life and death, allowing two regretful lives to finally find comfort.
Purpose: to break the convention of traditional Republican literature that "only abuses the past but does not save the present", and reflects the spiritual dilemma of the modern heroine with the regrets of the Republic of China line; uses the active pursuit of the modern line to complete the intergenerational comfort for the protagonist of the Republic of China. The past and present are two-way redemption, mirroring each other, and the emotional closed loop is complete.