Rosalia used to be just an ordinary 17 year old girl, with little to worry about. She spent most of her free time with her best friend Iza. All of that was great before her mother suddenly disappeared without a trace. Additionally, Rosalia started getting strange notes at random places with confusing messages. Some of them even sound like they were from a stalker. Will her new classmate Vald's sudden arrival solve some of her questions or only create more?