C521 Because of the Human Heart

That's more powerful.

This could only be known through comparison.

Furthermore, this deep palace was located in the Heavenly Palace. It wouldn't be good for Wei Shiyi to stay in front of the door for too long. If Wei Ren had already recovered and rushed over here, he would also discover this door. That would be terrible.

Therefore, Wei Shiyi needed to find a way to open this door.

However