Takeru Ohyama attends Tenbi Academy, a once all-girls prep school turned co-ed for students who channel a spiritual energy called Element and fight with crafted weapons known as Maken. With the first term over, this OVA sends Takeru, his childhood friend Haruko Amaya, and the rest of the Maken-ki student council off to a beachside training camp on a southern island. The holiday quickly turns into harsh practice between the swimsuits and the sand.