C404 Training Building.

"Given that this barrier has manifested here, it's clear that the items within are meant to be acquired by Martial Cultivators. Since it can't be breached by force, there must be an accessible method, one that even an average Martial Cultivator can use."

Qin Ming pondered, 'If entry isn't dependent on strength, then there's only one alternative—a key to the barrier.'

After all