Raising a Young Girl

One day, a high school girl, Nozomi Koizumi, is suddenly summoned by her biology teacher, Mr. Tsushima, and for some reason, she is given a certain creature. It was an amazing "indestructible" creature that does not die even if it is cut up or ground down. From that day on, Nozomi becomes a "breeding girl" and spends her days encountering and struggling with various creatures.