Who’s the guy with blonde hair and golden eyes though?

Possible descendent of Bahaman os something which was the name of a human who could control the divine beasts. That's why if the humans have them and use them, they can eliminate the divine beasts. Some imperial family had the last one slayed for some reason idk.

But that dream Blondina had makes me believe she's probably the lost descendant or at least a very powerful witch or something, since that black leopard who wasn't Amon is probably the beast that run causing chaos before they made the treaty.