Founded in the Taisho era, the \Red Flower Opera Company\ attracts peoples hearts across generations on a beautiful and gorgeous stage created only by unmarried women. The 100th generation students who have passed through a high magnification and entered the \Red Flower Opera Music School\ to develop the human resources. Sarasa Watanabe, an innocent girl with a height of 178 cm who longs for \Oscar-sama.\ Ai Narada, a former national idol who is indifferent to everything, both dreams and friends. The music school life full of hope and conflict, where everything is disjointed, is about to begin.