Leon didn't expect his father to have the patience to observe a patient for more than three years. However, he quickly retracted the idea after seeing a few cases eclipsing the same period.
'Father probably didn't observe these people in person,' Leon concluded.
Being the Divine King of the Divine Pill Kingdom, his father didn't have the free time to observe a single individual for so long.
'Father must have assigned subordinates to observe these individuals.'
Nevertheless, patient Zhang Tianlong's case didn't end after three years but continued to the day he was killed along with his father.
…
…
'About thirteen years to reach the Divine Origin Realm, huh?' Leon mused.
'Compared to Aria's talent to become Divine King by 30 years of age, this person's cultivation speed is not worth mentioning. However, this isn't the important point here.'
