Lin Wan, a renowned 32-year-old architect at the peak of her career but emotionally unfulfilled, is unexpectedly reborn at 22, during the most uncertain season of her life: graduation. With ten years of memories behind her, she is determined to change her fate and make up for her regrets. But as she sets out to change the course of her life, she meets Shen Zhixing, a 19-year-old architectural prodigy. What begins as a connection like that between teacher and student develops into a relationship between kindred spirits. Facing their age gap, social prejudice, family opposition, and fate’s trials once more, they push forward together against the odds. In pursuing their architectural dreams and remaining true to their love, they ultimately write an answer to life that honors both their youth and each other.