Neuroscientist Shan Yu discovers the sudden death of his first love, Min Ying. Before she died, she clutched a birthday candle in her final moments. Lighting the candle, Shan Yu miraculously travels back ten years, and attempts to alter their fate. However, each journey he takes inadvertently triggers unforeseen consequences, and a decade-long hidden love story is gradually unveiled…...

The designer An Duoduo found out that her fiance Qin Lang had been cheating on her when she was preparing for their wedding. So she caught him and his mistress Li Weiwei in bed. To her surprise, Qin Lang didn’t call off the wedding but married Li Weiwei instead. An Duoduo hired a man to be her groom and made a scene at the wedding, not knowing that the man Qin Qi was actually the head of the Qin family. Qin Qi helped An Duoduo vent her anger. But their false marriage was soon discovered by Li Weiwei who then put An Duoduo into another crisis. But An Duoduo was never one to be messed with in the first place. It is no joking when people say “don’t mess with your ex-girlfriend”. A war was about to start....

Tong Yuxin has a magical necklace that makes people fall in love with her for an hour. Her accidental kiss with Tang Yutong causes the necklace to be transferred. Deprived of magic, the original Tong Yuxin is revealed, and she is eager to knock down Tang Yutong to get back the necklace. A romantic education about love and music unfolds from here, and a misplaced first love story also emerges....