14 A question

The pairing of Miyuki and Tatsuya is something that got me thinking.I mean these ancient wizards seem to have tried to keep there powerful magical genetics within the family in some cases.

Although in the novel it says that there is no proof any genetic abnormalities of such marriages seem off.Since I have heard sibling marriages are said to cause genetic disorders.

After all if we take fictional route we have read Targaryens going mad and then we have Gaunt family from Harry Potter.

Both have seen signs of twins getting married that show children of such union go down the drain or there children can go mad like Joffrey.

Although there is probability of then not having any madness, but still carry on the genes.

So I wanted to incorporate those in this fic.