|Series:||AKB48 Murder Mystery|
|First Appearance:||File 5|
|Last Appearance:||File 5|
|Number of Episode|
|2 (File 5, Testimony File)|
- "Detective Maeda said that the suspect is among the AKB members, But I really don’t believe that. Yuko especially has a lot of connections outside of AKB. On the other hand, for someone in AKB to do something like this, who could it be? They must be doing it for a really unexpected reason that can’t be helped."
- ―Masuda Yuka's Testimony[src]
All 89 members of AKB48 went to a duplex island owned by one of Akimoto Yasushi's friends for a CM Shoot. After their first day shoot was over, they went to their designated resthouse on the other island. It was assumed that she heard that Kato Rena was missing and was shocked to learn that the scream they heard was from Sashiko finding the girl's lifeless body in the dining hall.