C135 He Wanted to Eat a King's Feast

"Then you act according to the circumstances. Don't give yourself away.

This is the chip I developed, find a way to place it closest to them "

Prof Qi took out a thumb-sized chip from her pocket and instructed her.

As long as the chip was placed beside them, she would be able to hear their conversation.

Qi Yan took the chip and nodded at her before turning around and leaving.

On the way back