```
"What's the matter?" Zuo Li was taken aback and looked in the same direction.
The sky was blue, the clouds were white, and the sunlight was brilliant.
Not even a bird in sight.
What was she looking at?
Just as Zuo Li was utterly confused, he watched the girl pick up a stone from the ground and after tossing it in her hand, she hurled it into the air.
"Crack!"
A very faint, crisp sound, as if something had shattered.
Gone in a blink.
Zuo Li stared at that spot in the sky for a full thirty seconds before he finally snapped out of it, uncertainly, "Classmate Ying, did you hear anything?"
"Hm?" Ying Zijin retracted her gaze, wiped her hands, her expression unchanging, "Nothing at all."
But what she hadn't expected was that the technology on Earth had already developed to this level.
However, that wouldn't obstruct her plans for retirement.
"Oh, okay." Zuo Li nodded, thinking he might be too excited and had started to hallucinate.
**
At the same time.