Either you got lucky, or you've spent an astonishing amount of money into the game. Considering how you also have Hraes, I'd say that the latter is far more likely.
But what do I know~
The former, already said my heca is $140 tyvm, and ive spent the same if not less than you
edit: ive spent way less than you indeed, im at $450 (rechecked my bank acc) since i play the game from soft launch, you surpassed me just whaling for karin.