The manifestation of sloth, Nina is perpetually sleepy, rarely even having the energy to crack a smile (but by that same token cannot frown either). She has no clue where she came from or for how long she’s existed - just that she likes the world in her dreams better than the one where she’s always tired (which is why she sleeps as much as she does). Over time Nina eventually found out she was a lingering ghost with enough power to manifest a physical form - which is why no matter how much she sleeps, she always looks like she hasn’t had enough.