C1320 Five Poisons

Yun Hao looked at the iron chest, carefully observing it, afraid that some other mechanism would pop out.

After confirming that the iron chest was safe, he took out the items inside.

All of them were handwritten notebooks. Yun Hao opened them to take a look, and immediately confirmed that these were most likely the things that Zhang Yi Ding had spent five years of hard work to write