"I heard that someone died in the Prince's Mansion"
"Who is it? Why are you making such a fuss?"
"Oh, it seems that the eldest son is dead."
"Oh? It turns out he is the eldest son of the Crown Prince! That makes sense. After all, the eldest son's sister is the queen."
He died tragically due to the plot of her biological sister. In the face of all interests, if he was born from the same mother, what does biological blood mean? The good thing is that he still foolishly believed in his biological sister until his death! If he could live his life over again, he would definitely change his destiny!