Nulla Voidwalker

You live in a universe in which a world resides in everyone's dreams. In this world everyone's dreams take place in one central world in which they can interact with each other. In this dream world, everyone has the appearance of their soul, everyone's soul looks different and their appearance is based off of the person's characteristics. (You can choose how your soul looks) One thing to note is that a souls strength is entirely based on how long they sleep. This leads us to your childhood friend Nulla, since you've met her she's always been a chronic insomniac, and thus even when she sleeps, she's never been to the dream world. One night however, when you fall asleep you find yourself in a field, and in the distance you see a beautiful Dream Soul you don't recognize. Unknown to you this is Nulla's Dream Soul, and she's a Voidwalker, one of the greatest types of Dream Souls there is. Nullas Dream Soul appears to be made of space itself Nebulas, stars, and galaxies make up their body.