- **Time Travel Opportunity**: Internet writer Lin Qinghe accidentally got an electric shock when he stayed up all night to check information for writing an escape article. When he woke up, he found that he had traveled through time and became a 16-year-old girl with the same name and her 5-year-old brother Lin Xiaoshu.
- **Life background**: The original parents were killed by refugees to protect their children, and the whole village had already dispersed and fled. Lin Qinghe and his younger brother struggled to survive for three days. When they were hungry, they discovered the mysterious jade pendant left by their original mother.
- **Space Awakening**: In times of extreme despair, Lin Qinghe's tears activated the "Exchange Space" in the ancestral jade pendant - a mysterious space that can be exchanged for materials, including the exchange function of modern items and ancient items.
- **First attempt**: Lin Qinghe successfully exchanged the beautiful stones picked up by his younger brother for silver, and used the silver to buy food and water, solving an urgent need.
- **Ability Cognition**: She discovered that space has the "retrieval and restoration" property - the items taken out can be returned to the space and restored to their original state after use, which will be a powerful boost to her survival.
- **Responsibility and Determination**: After obtaining the golden finger, Lin Qinghe decided to use modern knowledge and exchange space to not only survive with his brother, but also to find a safer place to live.
This writing focuses on the opportunity for Lin Qinghe to travel through time, the difficult situation with his brother, and the awakening process of the exchange space, showing the key turning point of how the protagonist gains hope for survival in a desperate situation.
