Manga Version

Detective Maeda asked Mariko to interview the 87 AKB48 Members and Research Students to find a lead.

CM Version

The testimonials and alibis of the group were uploaded to Glico's official website to help the online contestants choose which one member do they think is the killer. For each CM released, a new batch/set of Testimonies were uploaded to the site. Only Amemiya Maika, Kita Shiori, Hasegawa Haruna, Moriyama Sakura, and Watanabe Nene (all from Team Kenkyuusei) didn't have VTRs.

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