In 2095, Tatsuya Shiba and his sister Miyuki Shiba are new students enrolling at the Private Magic University Affiliated High School (First High School). Students are ranked according to their test scores: students with the best grades are designated "Bloom" and enrolled in the Course 1 curriculum, while those with poor scores are designated "Weed" and enrolled in Course 2. Miyuki topped the entrance exams and is selected to be the first years' representative, while Tatsuya is placed in Course 2 due to his low practical test score, despite scoring the highest in the written portion of the exams.