Reincarnated individuals retain their Professional Level and memories, even though their bodies are new.
Gaven's Professional Level clearly does not match the abilities he has displayed.
Unless through particular methods, even one's own Professional Level is erased, ready for professional reshaping.
Ultimately, Virginia was confined by his own limitations, unable to break free from fixed thinking, only considering from the existing perspective of magic, failing to realize that Gaven faced a bigger dilemma.
This conjecture could match about sixty or seventy percent of Gaven's condition, just missing the most core aspect.
Gaven choked, wisely not dwelling further on this matter.
If a man's every thought were known to women, the resulting disaster would be more terrifying than the Arcane Catastrophe, causing the Multiverse to collapse and destruct.