beta
My theory is MC is actually the Medest's missing daughter, and that all the second/third children that randomly goes missing in their family are all the "divine beasts" trapped in the temple - bc the Medest's were originally beastmen and can transform.
Also with the missing duke who can transform into a tiger, there was a tiger in a cage in the temple, which could be him after he transformed.
It also makes sense that "divine beasts" are so hard to find because there's only a limited amount of children from the Medest family each generation.