Hyemi's wrapping up her high school career as she takes on senior year. Her life gets changed around when the daughter of BTS' manager, Yumi, suggests that Hyemi become the female backup dancer that BTS is looking for. What is the fate of BTS and Hyemi?

Being a second semster senior is what Athena and Jihye have dreamed about since their freshman year at Elements High, the best element training high school in the world. During the second semester is when they'll be placed into their mission groups. These groups take the remainder of the senior year to train and then are released into the world to fight off demons or fight against people who abuse their element's power. Athena's one of the best students in her class and the teachers h