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.
Well, that's how crucial our showing in
the Nine Schools Competition is to the academy.
حسنًا، هنا تكمن أهمية عرضنا للأكاديمية 
.في مسابقة المدارس التسع
Für die Schule ist der Erfolg beim
„Wettbewerb der Neun Schulen“ wichtiger.
Para las escuelas, el Torneo
de las 9 Escuelas es muy importante.
Así de importante es para la escuela
nuestra presencia en el Torneo.
Le lycée donne beaucoup d’importance
à la bataille des neuf écoles.
Para a escola, o resultado das 9 escolas
chega a ser importante a esse ponto.