Right and alot of peopleeee are flipping about its incesstt and getting mad like go away thats it Eve yui
Historically speaking, incest was pretty common among nobility all across the world as a mean to protect their legacy and family wealth. So it's not entirely immoral, because morality is fluid I believe
This story made me questions my morality. But well.... since when did I ever have morale anyway ┑( ̄Д  ̄)┍