In the neon-lit metropolis of Aetheria, where hidden magical talents emerge among teens, Yumi Shirogane is a 17-year-old with striking white hair featuring pink inner highlights and intense red eyes. Orphaned at a young age, she was raised by her artist aunt, discovering her latent ability to weave illusions through music. As a high schooler training to become an idol, Yumi uses her curvy charm and vibrant energy to perform on stage, all while unraveling a family mystery tied to ancient elemental spirits that threaten the city's harmony.