"M-my, dad? Was your... student?" It was unbelievable, not impossible, but unbelievable.
I never knew of anything like that one.
This was the first time I was hearing my dad even had a master.
All this time, I only knew me trained on his own and most of his knowledge was from experience, talent, and practice.
But now that I thought about it... my dad was now some of the few (tier-7) mages in this vast empire.
There were few of his rank and thinking back to his mastery of basic magic techniques. Oh yes...
His basics were too polished to be self-taught.
I have seen his magic casting and I remember everything I had seen him do.
His magic, those awesome techniques where he can actually cast magic traditionally like any other mage, processing a spell quickly, and understanding the magic he is using.