|Series:||AKB48 Murder Mystery|
|First Appearance:||File 3|
|Last Appearance:||File 5|
|Number of Episode|
|4 (Files 3-5, Testimony File)|
- "Yuko-chan, I’m so sad. Yuko and I formed the unit “Oshiri Sisters”. Our debut date is undecided. Detective Maeda only looked at her chest, but Yuko-chan also has an amazing butt!"
- ―Watanabe Mayu's Testimonial[src]
Watanabe Mayu (渡辺麻友?), nicknamed Mayuyu (まゆゆ?) and CG (Cyborg Girl), is the central figure of Team B. She is one of the primary characters in AKB48 Murder Mystery series. She was based on and is portrayed by Watanabe Mayu.
Parts in the Story
In the CM Version, Mayu wears a laced one-piece striped blue dress, her hair was long and flowing. She used a laptop in examining the images of the clues left by the two previous victims. After showing Acchan a close-up image of Renacchi's clue, she was stabbed from behind after the lights in the library went out. Realizing the meaning of the two clues, she marked the keyboard's letters with her own blood to give another clue to the killer's identity.
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. When Yukirin asked Mayuyu where Acchan is, Mayuyu told her that Acchan was asked to stay behind for a meeting on the other side. 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.
After they were gathered in the mansion's hallway, all the members were in a state of panic after learning what happened to Renacchi. Mayuyu and Yukirin were feeling nervous and talked about the atmosphere, even thinking that the atmosphere was like in SKE48 Mousou Deka!, when Yuko abruptly fondles the two from behind. Mayuyu and Yukirin noticed that despite being her usual self, Yuko was also trembling. Overhearing Shinoda and Kaoru's phone conversation, Mayuyu and the other Kami members tried to calm the others, who tried to run out and escape, until Atsuko and Takamina arrived. Confused on what Atsuko meant by declaring that she'll take this case, she and the rest of the other members were shocked when Atsuko additionally declared that the suspect could only mean one of the AKB48 Members as the doors and windows were tightly shut, and only the members have access to enter. Comforted by Atsuko's concern for the incident, Mayuyu and the other members became hesitant after Atsuko miscalculated the number of suspects.
[more to be added]