A dazzling encounter between rhythm gaming, theater, and musicals — Nientum - Op.ZERO. Step onto the stage as Aleph and Liora, two performers who have lost their memories. Tune the stage with music to progress through the story — an entirely new experience where action and adventure collide. The Tale of Princess Kaguya, The Wizard of Oz, Cinderella, King Arthur, and more — widely known classics are reborn as stories harboring intriguing secrets through their performances. Where will your actions on stage lead you in the end? Complete the stage with your own melody and help them recover their lost memories.