Cao zhishu's doubts

Yuan Zhou's words sounded like a ridicule, but the system still answered him seriously.

The system displayed,"yes, host. The poison of the pufferfish is at its peak at this time. Please handle it carefully."

"Thank you," she said. Yuan Zhou said noncommittally.

The system displayed,"you're welcome."

"Have you already provided the pufferfish?" Yuan Zhou suddenly asked.

The system displayed,"yes, host, it has been provided."

"The reward is a complete collection of pufferfish cooking methods. I remember that the sale and handling of pufferfish require a certificate." Yuan Zhou stroked his forehead and said suspiciously.

The system displayed,[the certificate of purchase for pufferfish is complete. The host doesn't need to worry.]

"Only the certificate of purchase? In other words, there's no certificate of sale, right?" Although Yuan Zhou was asking, his tone was quite certain.

The system displayed,"yes."