High school sweethearts Gao Song and Pei Yanyan fell in love during college but broke up after graduation. Seven years later, Pei Yanyan is still single, while Gao Song is about to get engaged. As they reconnect, old feelings resurface, forcing them to confront their past and decide if their love deserves a second chance.
Caught in a spiral of routine and unresolved tensions, young spouses Amanda and Sebastián face a crucial point after a heated argument. Over the course of a day of introspective journeys and memories, mysterious encounters from different timelines challenge them to confront their past and future, urging them to make one last effort to save their relationship.
With their tumultuous relationship wiped from his ex-boyfriend's memory after an accident, Fumiya capitalizes on Okusawa's amnesia to start anew.
A marriage. A re-marriage. A pending divorce. It's been five years since Kukoo and Nainaa got married after knowing each other practically all their lives, and now they need to break it to their family that they want a divorce. Kukoo's parents, Bheem and Geeta, a couple that everyone looks up to, have no plans of making Kukoo and Naina's lives easier. They have their own plans and set of surprises in store for the young couple; all this in the middle of Kukoo's sister's wedding.
Ha-neul, who is unemployed, moves to his best friend Bong-sik's house after breaking up with his lover. Together, they face the woes of love and relationships.
Jiang Xiaoyu and Zhao Zuozuo do not want to break up upon graduation, so they choose to receive a marriage license before receiving their diploma. Zhao Zuozuo accidentally gets pregnant near graduation, and the hurried marriage is in crisis. The child is accidentally lost, and the two can not bear the blow of life and finally break up.
In a hospital in K City, a sudden car accident caused Gao Yuan and Huo Shang, who hadn't seen each other for eight years, to meet again. Eight years ago, the dumb student Huo Shang and the smart student Gao Yuan became best friends by helping one another. They made a deal to be enrolled in the same university, but Liang Qi ended up in an accident, and after Huo Shang helped Gao Yuan and Liang Qi out, he went missing. It has been a pain in the neck for Gao Yuan as Huo Shang left without saying anything. Now, they have a chance, to re-create the relationship and clear up understatements.