As the trainees are given a day off from their lessons, the girls split off into various groups doing various activities with their seniors. Nagisa decides to follow Chieri as she goes shopping, where they meet up with Yūko, who tells them about the last successor of Atsuko Maeda who disappeared during a concert. Meanwhile, Suzuko and Sonata becomes curious about AKB0048's producer, Sensei-Sensei, whilst Yūka and Orine meet with Tomomi Itano and her ancestors. As all of the current members teach the trainees about what gives them inspiration, Nagisa and Chieri decide to follow in Yūko's footsteps.