A lighthearted, everyday romance-and-growth story. My name is Nishinomiya Chiu, I'm nine years old, and I'm in elementary school. I get excellent grades. Every night before bed, I drink a glass of warm milk and do ten minutes of flexibility exercises. The doctor says I have too much free time. But I know I'm perfectly healthy. I live in a small apartment in Tokyo with my twin older sister and my younger sister, who's three years younger than me. My goal is to start my own company someday. That is, until I meet all the hardworking anime girls. Gradually, I realize that something is off about this world.