"How Deep is Our Love" is a contemporary romance novel that tells the story of Seraphina 'Sera' Xu after her rebirth. In her previous life, Sera suffered great misfortune, being bullied and humiliated by her sister Rylan Shen and a group of non-mainstream teenagers, ultimately dying in despair. However, fate gave her a second chance, and she unexpectedly returned to 2008, a few days before her father Arthur Xu's death. After her rebirth, Sera faces the possibility of changing her destiny. She is determined not to repeat the mistakes of the past, to protect herself and her family, and to avoid the tragedy of her previous life from happening again. She realizes that she once lived in a conspiracy of Rylan Shen, including her father's car accident, which was also planned by Rylan Shen. After her rebirth, Sera, with the memories of her previous life, begins a journey of revenge and finding true love. In this process, she meets Dominic Qin, and a deep affection develops between them. Through Sera's experience, the novel shows how a woman, after experiencing betrayal and pain, can stand up again and bravely face life.