The sky was gradually darkening. After work, Xu Ruolan returned home only to find the door of the basement laboratory open. She was wondering who might be inside when her eyes suddenly brightened, and she walked down with some anticipation.
Sure enough, as she entered, she saw Ning Fan busily engaged inside.
With a squeak, the laboratory's glass door automatically opened, alerting Ning Fan, who had been lost in his experiments, to someone's presence behind him.
"What are you researching?"
A gentle voice came from behind him. He turned and saw that it was Xu Ruolan who had come back.
Unknowingly, it had already turned evening. Only now did Ning Fan realize he had been tinkering in the lab for about an afternoon.
He scratched his head and lifted his finger toward the computer, "There's a new report on there, which I wrote. I hope it's useful to you."
After hearing this, Xu Ruolan walked over curiously and earnestly checked the report together.
