Seven years later, Chen Siyao's dance studio received an anonymous courier.
The faded ballet shoes are stuffed with locust-scented painkillers, and the delivery address is the newly moved graphene laboratory next door.
The boy who tore the math paper into bandages to bandage her foot injury was now wearing a white coat and looking up from behind the microscope:
"Ms. Chen has an old hip injury. I suggest you try my latest invention."
The silver pill box he handed over had a note on it that said "Side Effect: Induces Memories of First Love", and the English signature of "Cong Chong" was printed on the back - exactly the same as the signature of the unsent love letter seven years ago.
Chen Siyao crushed the tablets and sprinkled them into the coffee: "Professor Cong should explain first why the smart bandage you developed..."
She pulled open her shirt to expose her back, and pale golden lines appeared on her skin - that was the chemical formula of the sweet-lothus flower hidden on the top floor of the experimental building in his high school.
In the convenience store on a rainy night, the beep of the scanner gun revealed the secret:
The peach oolong tea he orders every year is delivered to the front desk of her studio;
Under the VIP seats of each of her performances, graphene chips that can monitor pain index are hidden.
When expired painkillers begin to taste better,
When the centrifuge spins out the heartbeat rate of the seventeen-year-old,
Chen Siyao finally understood:
Some people's reunion is not a reunion after breaking the mirror.
But the medicine that was not given away when I was young,
Boil it into the sugar cube in every cup of coffee for the rest of your life.
Purpose: Healing