Gem

Sapphire is no stranger to Tragedy. Sometimes she innocently causes it. One day she plays around with dark magic thinking it'll be fun, but she learns why you should never cast love spells.
Jade is a social outcast, but she's an excellent math teacher. In her small town she's known for being heartless. She strongly believes that the only person that she needs is herself - that is until one day, someone decides to cast a spell on her, not realizing that she is a diagnosed psychopath.