C1490 A Qualified Author

Half the length of a finger...

Qingyuan stretched out her palm, examining it closely.

She understood the timing method Yao Ziyan was referring to: one second was just slightly longer than the duration of a blink.

"The cherry blossoms fall at a rate of five centimeters per second..." Qingyuan echoed Yao Ziyan's words, her face etched with confusion