Keep Her Prisoner: the Possessiveness of the Eldest Princess

I was the most noble eldest princess in the dynasty, but I disguised myself as a man and sneaked out of the palace and was assassinated. When she fell in front of the farm girl's thatched house on a rainy night, her fingers were as gentle as an illusion. "Don't be afraid," she stared at me with her pure eyes, "Will it hurt?" Later I found out that she had a fiancé who came to Beijing to take the exam. When the news came that the unfaithful scholar had married another high-ranking man, I tore up all my pretenses. I imprisoned her in the deepest cage of the princess mansion. "Your Highness, this is treason!" She struggled to push away the gorgeous clothes I gave her. I grabbed her neck and let go: "Then you run away, the whole capital is my spy." In the end, she went on a hunger strike for three days, and I just smiled and unfolded the letter: "Did you see that? Your family is still waiting for your fiancé to support you in high school."