During their childhood years in Wutong Lane, Lin Xi and Ji Chenzhou were inseparable, and the paper cranes in the glass jar carried the boy's secret agreement. An accident in a heavy rain brought the innocent feelings to an abrupt end. Ji Chenzhou's mother passed away suddenly, and the boy left without saying goodbye. While waiting, Lin Xi received the returned paper crane, and the burn scar on her arm became a permanent mark of regret. Twelve years later, Lin Xi, who became a surgeon, regained memory fragments while sorting out her mother's belongings. An unexpected encounter in the emergency room, the cold architect's eyes hide old wounds that have not yet healed. The "betrayal" scene that Ji Chenzhou witnessed back then, and the truth about the separation that Lin Xi has never solved. When the gears of fate bite again, those misunderstandings buried by time will soon be revealed.
