The strange figure

Its my first time writing something like this. please give me suggestions on what you want to happen!

Y/n had a hard past. your mother hates you and you barely see your three sisters, or your boyfriend. you start to hear a voice that you dont understand, and end up with a unpredictable, black eyed, and sometimes green eyed or blue eyed, demon living in your own home. Every part of your life changes when you see him in your home. he even has a huge collection of different types of knives. You have no idea what to feel for him, or anyone else. eventually, you become something you never wanted to be before.