Bakugou Katsuki is from Australia but came to Korea to become a singer and dancer and currently attends UA High. He is in a singer group named Stray Kids and goes by his Australian name Felix and now living a double life with his hyungs. But what happens when they're hosting a concert for their Stays' and his whole class gets tickets to the concert? Will they find out that the classmate that they know now is notting like he acts? what will they think of him?