Lalisa Manoban is a stubborn dance-loving girl who lives with her always dissatisfied mother. The woman has enough, so she sends her to Aunt Ahn's school, where she meets Kim Jennie, the cheeky blonde-haired class first, she starts rivalry with. But when they witness a murder, they have to work together and keep this huge secret. But what if the killer's next target is Jennie and Lisa?