|Series:||AKB48 Murder Mystery|
|First Appearance:||File 4|
|Last Appearance:||File 5|
|Number of Episode|
|3 (Files 4-5 and Testimony File)|
- "Two more were killed… Acchan said the culprit was among the members. I can’t be around a murderer! I’m going to go back to my room."
- ―Miyazawa Sae's Testimony[Testimonials and Alibis (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.