Magic bloodline

"First, you must know that the magic bloodline has existed for thousands of years. Some of our earliest ancestors have been worshipped as gods and goddesses.

However, as time passed, the number of witch and wizard has gradually decreased. Some think that because the magic bloodline became more and more diluted as we cross-breed with humans too much. Or maybe due to many witch-hunts throughout history. Anyway, about 400 years ago, there is only one wizard survived. His name is James Maxwell.

Seeing that the magic race is dying, he spent his life creating a solution. I have explained to you that every witch and wizard has a unique power, right? Normally, no two abilities of the same kind may exist at the same time. Only after a witch or wizard died, their ability can be reborn into another one. But through unknown means, James has modified his own power, making it transferable from father to son. That power is called 'One For All', and you inherited it from your father, like how he inherited it from your grandfather..."

"Wait, I have power? Why can't I feel it?"

"You asked me why don't I tell you until you turn 18, didn't you? Because you can only use your power after you turn 18."

"Mom, you make me too curious. What kind of power do I have? Flying at light speed? Generating ice? Turning into magma?"

She shook her head: "How can it be such ordinary powers? One For All grants you the Inbreeding ability."

Your jaw dropped so low that somebody could put three eggs into your mouth at the same time.

Your mom didn't give a look, instead continue to explain: "James figured out that the only way to maintain the purity of magic bloodline is to commit ****. He married his own mother, his own sister, and his own daughter. All witch and wizard alive are his descendants.

Your power makes the negative effects of inbreeding are non-existent in our family and children are born without any genetic defects. People who are not related to us will react to our incestuous relationships as they would to a normal relationship.

That's how I marry your father, who is also my father and uncle..."

"Just that? Nothing more special?"

"Of course not. Seven is the number of magic. James himself is the seventh son of a seventh son, as same as all wizards originated from him, including you.”

"Wait, I'm the seventh son? You mean I have brothers I didn't know about?"

"No, when I said 'the seventh son', it neither means you have brothers nor you are the seventh child of your father. It means the seventh child born from a coven. Except that one, all other children is female.”

"Coven?" Another strange term.

"To put it simply, the coven is the basic unit in our world. A coven consists of three witches. The coven that gives birth to the bearer of One For All will be called The Charmed Ones and the one who directly gives birth to him will receive the title The Supreme Witch, the Matriarch of all witches. Of course, that position currently belongs to me.”