"Miki-kun. You are the only male student admitted this year." A traditional and prestigious school located at the end of a deep forest. For more than 100 years since its foundation, "Sakurarin Gakuen High School" has been famous as one of the most prestigious schools for young ladies in Tokyo, However, due to the declining birth rate, it was decided to make the school co-ed. However, only one boy, Miki Tohno, has enrolled in the school. Surrounded by classmates of different genders, cultures, and living standards, Will Miki be able to keep his position as a special student? It's the beginning of a school life filled with hardship and happiness.