This has a lot of disparate elements--there's the everyday bullying, the mysterious girl with her missing memory, and another weird occult element which seems like it ought to be related except the occult being has no idea about her. This could come together in an interesting story, but the way it's being told so far it seems more like each different bit is there mostly to provide maximum Korean dramaaa. I love me some good yuri, but I think I'm not following this.