The Honor at Magic High School

March 25th, 2095. To celebrate her 15th birthday, Miyuki Shiba goes shopping with her older brother Tatsuya in Yokohama. Miyuki enjoys her time with Tatsuya as if they are on a date, and she is ecstatic when he gives her a surprise gift. However, they are interrupted by a call from the main branch of their family, the Yotsubas, who are members of the Ten Master Clans. They ask Tatsuya to attend to an urgent matter. While Miyuki waits for Tatsuya to return, the fire alarm in the building goes off. Miyuki senses that this is a criminal act committed by someone using magic and heads toward the fire.

Honoka Mitsui and Shizuku Kitayama are accepted into First High. Ever since Honoka caught a glimpse of Miyuki at the entrance exams, she felt a strong admiration for her, and is overjoyed when they unexpectedly become friends. Honoka also respects Tatsuya for being an exceptional magician but is surprised to find out that he is a Course 2 student. She begins to wonder what the difference between Course 1 and 2 students are. When Honoka and her friends find themselves caught in a quarrel between Course 1 and 2 students, she tries to use magic to quell the dispute, knowing full well that it is against school rules to do so…

With the club recruitment week happening at First High School, Honoka and Shizuku, who are all-round outstanding students, are asked by various clubs to join. When they find themselves mobbed by club members, Eimi comes to the rescue, and the three of them become fast friends. One the way home from school, Honoka and her friends witness Tatsuya, who recently became a member of the Disciplinary Committee, being attacked by someone. Eimi, who is driven by her interest in this incident and in Tatsuya, decides to investigate who the attacker is. Honoka and Shizuku get pulled into Eimi’s investigation and the three girls end up forming the Girls’ Detective Club.