I dont remember but how many siblings deborah have?

I Think it's 2 older twins and a little brother so I think it's 3

That was going to be my question as well

I'm not sure if the older brothers are twins though. I think the one fighting away is the eldest, followed by the mage/magician older brother.

nah. they’re definitely twins. that’s why they’re both vying for the position of head of the family because they’re both the eldest.