In 2024, when Gu Xue Jiao, a graduate from a non-prestigious university, fails to land a high-level position, she confronts CEO Lin Zhi Hua. The two get into a heated argument as the lift suddenly plummets. When she wakes up, her life has restarted, and she is back at 18.

Gu Xue Jiao tries to convince Lin Zhi Hua to tutor her. Lin Zhi Hua puts together a list of out-of-print review materials that are practically impossible to find and demands that she gather them all before he will tutor her. Gu Xue Jiao accepts the challenge.

Gu Xue Jiao recalls how Gu Shuo listened to insider information and bought stocks during a parent-teacher meeting in her previous life, leading to the family's bankruptcy. So Gu Xue Jiao decides to hide the parent-teacher meeting from her father and find someone else to take his place.

Gu Xue Jiao is accused of being responsible for the conflict between the two classes. She stands her ground and cleverly resolves the issue using her previous workplace experience.

Gao Rui wakes up to find Lin Zhi Hua in a completely different state than before. To help Lin Zhi Hua regain his confidence, Gu Xue Jiao goes to great lengths to persuade him to return to his alma mater to give a lecture.

Everyone gathers on the old rooftop of Gu Xue Jiao's house for a party to celebrate her ranking in the top 100. Lin Zhi Hua promises to continue tutoring Gu Xue Jiao until the college entrance exam is over, bringing the two of them closer together.

The landlord informs Gu Xue Jiao that he's selling the house she and her family lives in. Gu Xue Jiao knows that the house will be demolished the following year and they will receive a large compensation for the demolition, so she suggests that her parents buy the house.

Lin Zhi Hua supports Gu Xue Jiao in applying to Jinghai University and takes her to the university laboratory to sort out materials. Gu Xue Jiao becomes more and more determined that Jinghai University is her dream.

By a sheer twist of fate, Gu Xue Jiao meets Lin Zhi Hua's mom and discovers his unhappy childhood.

Gu Xue Jiao gets lost in the mountains, and through roaring wind and pouring rain, Lin Zhi Hua rushes to her rescue.

Lin Zhi Hua tricked Gu Xue Jiao to go downstairs under the pretext of military training, but in fact it was to give her a birthday surprise late at night.

Gu Xue Jiao volunteers to fix a computer problem during Professor Tan's class, leaving a deep impression on him. He agrees to let her join the lab.

Lin Zhi Hua is about to head abroad, so the lab holds a farewell party for him. Gu Xue Jiao accepts the invitation to attend.

Gu Xue Jiao keeps a social distance from Lin Zhi Hua but she can't help wanting to know what he's doing.

Lin Zhi Hua and Gu Xue Jiao team up working on IT. When no one is around, they get all lovey-dovey. Yet, despite being cautious, they nearly get found out.

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