From Million-Copy Bestselling Author Si Yi Inspired by real criminal cases from Taiwan and Korea Healing Fiction x Detective Thriller   If we could change the past, could trauma and regret be rewritten?   On the morning the phantom sun appeared 12 years ago, Lin Xinyu found her sister's body lying in a pool of blood across the floor. A low-risk victim with no apparent motive and evidence, her sister’s case went cold and her family life shattered in the aftermath. When the same celestial phenomenon returns twelve years later, Lin Xinyu chanced upon an elevator that took her back in time to the investigation room one month prior to her sister’s murder. There she meets Detective Zhang Yan, working on a different missing person case. They formed an agreement to help Lin Xinyu to stop her sister’s murder and to solve Zhang Yan’s brother’s murder.   …but their contact is limited. Time travel could only happen under two conditions: 1) When the phantom sun appears and 2) in the old rundown building scheduled for demolition.   What begins as a supernatural anomaly quickly evolves into a labyrinth of missing girls, domestic violence, cult organizations, and cold cases—all threading back to that blood-soaked morning twelve years ago. Every clue Zhang Yan uncovers in the past sends ripples through Lin Xinyu's present. Every decision she makes echoes across twelve years of anguish and fragile hope. As their investigation develops, everything Lin Xinyu believed about justice, healing, and second chances crumbles.   With the collision of past and present, Lin Xinyu is offered a chance to change the past and fix the future, facing an impossible choice. As the phantom sun rises again, Lin Xinyu must decide: will saving her sister destroy the life she painstakingly rebuilt from the ruins of her grief? Or is the past she’s trying to change already the best possible outcome of a tragedy?   An unexpected detective thriller from bestselling healing writer Si Yi still brings something familiar for all his fans. Simultaneously a gripping detective thriller, When the Sun Divides also addresses the emotional journeys of the lives forever altered by devastating and brutal criminal cases. Whether you’re here for mystery packed investigations or Si Yi’s signature healing stories, you will not be disappointed.

From Million-Copy Bestselling Author Si Yi Film/TV adaptation confirmed   If you could send something to the past, what would you send back?   In the labyrinthine underground passages of Taipei Main Station, legend has it a miraculous place where you can send something back to someone in your past. Accessible only during the magical hours between 5 PM to 7 PM on Wednesdays, the “Regret Lost & Found Center” cannot be found by just anyone—it chooses only those carrying the deepest regrets.   Here the Regrets Keeper collects your package or letter of regret and sends it to the time you last met with the intended recipient. Here you cannot change the past, but you can let go of what you have been carrying and heal the present.   Five seemingly unconnected strangers arrive at the mythical center, each carrying a burden that has shaped their life – a missed phone call from a loved one, an apology never delivered, a child that never met her father, a final message never received, or a terrible accident. All of them looking for a way to make peace with the past.   Five interconnected tales of family, love, and lost dreams weave together across time and space, returning us to the moment where regret began—and bring us to where healing can finally start.

From Million-Copy Bestselling Author Si Yi Bestselling author Si Yi's 10th anniversary milestone work  Film/TV adaptation confirmed   A masterful fantasy-healing novel─── "If someone could truly help you find the lost memories of your loved ones, what would you want to know? "   In a quiet, unremarkable corner of the city, a modest flower shop quietly blooms: asides from selling flowers, it runs a secret business, finding memories of the deceased for those who still remember.   Ring-a-ling-ling───   "I heard this place can help people find memories. Is that true?" Every heartbroken soul who steps into the Memory Flower Shop can't help but ask this question. Shop owner Cao Xueyi lost his mother in an accident when he was young. For years, he has been trying to piece together the complete picture of that day. In the process, he accidentally discovers that through personal belongings, he can smell memories and see the past. While searching for his mother's memories, the flower shop gradually becomes an urban legend known as the "Memory Flower Shop." One by one, heartbroken people come seeking memories of their loved ones: those who left without goodbye, those they couldn't bid farewell to, those who suddenly vanished...   "I want to know why he committed suicide." "I want to know what really happened to my son." "What I'm looking for is a name." "I want to fulfill my sister's dream." "I want to know if he lived a happy life."   Those left behind seem to spend their entire lives waiting for that missing "goodbye" owed by those who departed.   Bestselling author Si Yi once again constructs a fantastical yet authentic world, responding to all forms of sorrow and loss with tenderness, offering a glimmer of comforting warmth in reality. Whether it's depression, migrant spouses, school bullying, or domestic violence... all are skillfully woven into the narrative. The Memory Flower Shop doesn't exist to find memories of the deceased, but to help the living repair their memories. It adds new memories for those trapped in the past, like mending and restoring broken recollections.   Through these deeply moving stories, the author seeks to explore a fundamental question: when pain is an inevitable part of being human, how do we learn to carry our enduring sorrows with grace?