The Overwhelming Sadomasochism of Ruoxi

The princess of the subjugated country was not afraid of the hardships and learned the skills from her master. She worked hard to practice martial arts just to avenge her revenge. When the time came, she entered the palace as a musician. Unexpectedly, she fell in love with the second prince of the enemy country and started a tangled love with him. She gave up the restoration of the country for him and married him as his wife. The senior brother who was thinking about her traveled thousands of miles just to see her, but he didn't expect that she was married to the enemy. He was filled with sorrow and only sadness. But things changed again between the two of them, and she returned to her master's school. I wonder if the prince can win back the heroine's heart? Or maybe the heroine and her senior brother are together?