"Hmm?"
This voice paused for a moment upon hearing Su Qi's words, as if taken by surprise.
It murmured softly, "I didn't expect you to discern my identity so quickly. Have I left any trace?"
"Just a wild guess, and it turned out to be right, which was cause for celebration."
"And what if you had guessed wrong?"
"Then, I would have simply smiled briefly and started over, guessing again. This method, in the proof by contradiction, is called exhaustion." Su Qi looked toward the distant ripples, where a faint, almost invisible thin shadow twisted.
Though he said it was a guess, he always managed to reveal information where traces of the other party appeared.
The voice chuckled softly:
"I was told that this new assistant was somewhat unusual, and now I am beginning to understand why."
"Assistant?" Su Qi corrected, "No, please call me Doctor Su Buxian."
"Very well, Doctor Su Buxian, I am the former chief physician, Doli." The voice carried a hint of light laughter.