Founded in the Taisho era, the \"Red Flower Opera Company\" attracts people\'s 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!