Become Invincible from Living with a Female Ghost

My name is Yang Yizhou, and I am a down-and-out scholar. In this world where ghosts are rampant, encountering ghosts is really a common thing. Just like me, on my first night in this world, I discovered the female ghost in the room. Fortunately, she didn't mean any harm to me, and I even felt like I was being teased by her. It is said that if you become a spirit master, you can make ghosts become your contract spirits. So, how can I convince her to become my contract spirit?