Karina is a romantic at heart and being so she's probably doing one of the most cliché thing ever, "confessing" her feelings to her long time crush though a message in a bottle thinking no one will ever know about it.

but it seems like destiny decided to intervene, or maybe play with her, because the very bottle that holds her letter landed on the hands of Winter. The student body vice president who was out on the beach for a clean up drive and

 Karina's long time crush.