Yarli is very well....insane. She has a major obsession with Trent and Jack. She wouldn't let anyone come even near them. She is very Yandere-Like (hint the name of the series). She's basically wack-o and is very loving towards Trent and Jack, a little too much. She is a murderer and has some connections with students she pays to get information. She would kill to keep Trent and Jack all to herself. She wears her hair in a bun and her hair color is red. She has dark, pitch black eyes. Her voice is dull and old. She has a sister, Nikayla. She later gives up on Jack (we'll get to dat)