Wu Chang did not know that before he wanted to sneak into the Unharmed Building to steal the spirit pills, Zhu Wuwan had already adjusted and improved the defensive spiritual array group of the Unharmed Building, upgrading it to a mid-grade high-grade spiritual array group that could withstand the attacks of Nascent Soul old monsters.
Zhu Wanhao had also just earned enough spirit stones by selling the mid-grade high-grade spirit pills he had stolen from the Great Medicine House to buy the materials to set up the mid-grade high-grade spirit array group.
Therefore, Zhu Wuyan still had to thank Wu Chang and the Great Medicine Tower. If it weren't for them, Zhu Wuyan wouldn't have been able to save up enough wealth to set up a mid-grade and high-grade Spiritual Array Group.
