After three reincarnations, their feelings heat up and they recognize each other. The regret of separation between life and death in the first life, the sadness of recognizing each other on the deathbed in the second life, and the perfection of being side by side in the third life - the time of the three lives was strung together by more than 300 letters, turning over every page of fate, and finally landed on an exhibition where "words are like faces", and all "unsent" have finally been "delivered".
Purpose: Love the enemy despite all odds