This was not something they could calculate at all. Unless the master was reborn, otherwise, they would only suffer a backlash if they forcefully calculated such an existence with their strength and cultivation.
The prince frowned. He knew that there were three types of people that these black-robed people could not calculate.
The first was a demigod. To calculate a demigod, one had to have the same level. For example, the Life Master who tested fate back then had enough level to calculate a demigod.
The second was to possess a powerful identity. For example, the princes of the Great Wu Empire, the Palace Master of the Heavenly Mystery Palace, and people who were more related to those eras in the past.
One of the limitations of the calculation was that it could only calculate the people and things in this era. It could not calculate the past era. Therefore, once it was deeply related to the previous era, it would also cause the calculation to fail.