C228 How Do I Calculate It?

Shi Ziyi couldn't help but sigh, "This time, I've really gained a lot of knowledge. I didn't think that I would be able to use Gu like this..."

However, at this moment, the old man's heart suddenly rang, "What is this? Although the Poisonous Arts is said to be declining day by day, looking back at the past, The Poisonous Arts has its own glorious days