28-Year-old Lin Xi died unexpectedly in a car accident. When he woke up, he became a 7-year-old girl named "Xiao Xi" and returned to 2007, nineteen years ago. What made her even more devastated was that the young high school students in front of her were her parents who had been "in love with each other" for a lifetime. Not only did they not know each other, they were also incompatible classmates and sworn enemies.
In order to repair the fragmented family in the future, Lin Xi was forced to embark on the most difficult "nurture system" task in history: while using the innocent appearance of a 7-year-old child to act as his father's "love counselor"; at the same time, as the "future daughter", he secretly healed the trauma of his mother's original family.
She carefully pushed the gears of destiny, but found that every matchup triggered an unpredictable "butterfly effect." What's even more surprising is that the seemingly carefree boy at the same table always seems to be able to see through her "adult soul". When Lin Xi found herself being gently accepted by this past world, a cruel truth surfaced - her "death" might be the price of this time travel...
