He's not a Joshua by blood but atleast he follow their principles
He is a Joshua by blood. Its just that he takes after his maternal family. His father is a Joshua.
But he's not affected by the Joshua curse
Because he doesnt have holy power. Only saint candidates are affected by the curse.
The other uncle is a saint canditate, anyone with holy power and a stigmata is considered a saint canditate.
The curse is male member either die young or have hairless and erectile disfunction
Yes. Thats why the red cardinal was mocking him about not being the heir because he does not having long to live. And that he cant have children. Thats why the 4th son is considered next in line because Isaac's father is missing and the uncle is cursed.
It's one or the other not both at the same he will either die before 20 or start to loss hair early and have erectile dysfunction.
It's in chapter 43. The red cardinal talking to the uncle about how the uncle doesnt have long to live and cant have children. Which is why he cant become the heir even though hes the only one whos actually fit for the job. The uncle is young, the red cardinal commented how impressive he is for his age. So they dont actually die as a kid but probably in their early or late 20s.
I like how depsite being a little bitch, Gaol or (whatever Shuri's father's name is) actually cares about Shuri. I'd forgive a good father no matter how evil they are