The 13th-Gen Members make their Debut. Divided into groups, the Members go to school to solve and challenge it's 'Mystery Trials'.
Mizuki Fukumura
Erina Ikuta
Haruna Iikubo
Ayumi Ishida
Haruka Kudo
Sakura Oda
Haruna Ogata
Miki Nonaka
Maria Makino
Akane Haga
Kaede Kaga
Reina Yokoyama
