In truth, Xu Yi didn't know what he wanted Wang Buyi to inspect. He had indeed used the Four-Colored Seal's pristine space to make a small alteration to the Yin Official Seal, extracting some rays.
As for what those rays were for, even he didn't know.
"Ah!"
Wang Buyi let out a strange cry, then roared furiously, "Incense Spirit Essence! My Incense Spirit Essence! You're too vicious, too vicious..."
Even if he smashed his own head to pieces, he couldn't understand how Xu Yi had managed to alter the Yin Official Seal. It had been created by Emperor Qin Guang himself—it was a sacred artifact.
Could even a sacred artifact be altered?
"Old Wang, Old Wang, are you all right..."
Xu Yi called to him in a low voice several times before Wang Buyi came to his senses. He gave Xu Yi a smile more painful than crying.
His heart felt as though it had been soaked in bitter coptis water. He truly didn't know what to say. He'd thought of everything, but no matter how wild his imagination, he'd never have guessed that Xu Yi could even tamper with the Yin Official Seal.
"I concede."
Wang Buyi suddenly clasped his fists, his face full of bitterness. "Since you've anticipated everything, just tell me what you want me to do."
Earlier, during their negotiations, they hadn't fallen out, so he'd still had room to maneuver.
Now he'd fallen out with Xu Yi and had no room to advance or retreat. Xu Yi had him by the throat. He could either resist to the death or give in; there was no room left to bargain.
He couldn't have resisted before, and he certainly couldn't now. The more he dealt with Xu Yi, the more his contempt faded and his wariness grew.