He is her cousin.
He is her master.
They have a relationship that is constantly being cut off and messed up, but so what?
If you love it, you should search for it independently and wander around the world; if you don't love it, you should simply stick to your own laurels and stick to the earth. . .
In the face of love, age is not a problem, gender is not a problem, special relationship is not a problem, blood relationship is not a problem...