I left the palace to recuperate for three years to give the Queen drugs, so the Queen passed the throne to me. I was afraid of affecting the relationship between my brother and sister, so I was reluctant to accept it. But when I returned to the palace, I found that the prince had asked his maid to assume my identity. My fiancé also broke my engagement to protect her. They even wanted to kill me. Fortunately, the queen arrived in time to save me. In order to punish the prince, the queen demoted him to a commoner. The prince rebelled for this, but I found out and was eventually thrown into prison, and I became the next queen.