|Japanese Name||渡辺麻友 （わたなべ まゆ）|
|Romanized Name||Watanabe Mayu|
|English Name||Mayu Watanabe|
|Debut||Episode 01 - The Indelible Dream|
|Japanese Voice||Yukari Tamura|
|English Voice||Hayley Adams|
Mayu Watanabe (also known as Mayuyu (まゆゆ)) is one of characters in AKB0048 anime series.
Mayuyu has long, pigtails with pink ribbons, blue hair, a cybernetic right arm that lauches missiles, and rose-colored eyes. She also usually wears a scrunchie on her left arm. Like all members of AKB0048, she has a heart-shaped lining on her hair and eyes.When trouble (DES ) approaches her pigtails stand on end.
Mayuyu acts cute in front of the crowds, giving the impression of an energetic and bubbly personality. In truth, she's a relatively emotionless girl, speaking in a monotone voice and has little social contact with the others. However, her emotions are extremely difficult to predict as she has a poker face personality. If there's no more food, she'll threaten Chef Papa until he gets her more food. Whilst it is never explicitly stated, she's heavily hinted to be a cyborg or even an android as she is the only one classified as MK3 Mayuyu .
- Mayuyu is based on current AKB48 member Mayu Watanabe. In addition to serving as the inspiration for this character, Mayu is also the voice of Chieri, making her the only member of AKB48 to voice a character in the Anime
- In episode 4, she ranked 5th at the General Elections, but was previously ranked 4th in the early rankings.
- She is always seen accompanied by Yuki Kashiwagi. The real life Mayu was always accompanied by the real life Yuki as well.
- Both Mayuyu and Chieri own stuffed alpacas, again pointing out the fact that the real Mayu Watanabe voices Chieri.
- Her missile-arm may be a reference to an episode of AKBingo where Mayu lost a dodgeball game and as punishment, had her arm "cut off" in a prank.
- Mayuyu probably has been a successor for a very long time, as she can be seen on the same stage as Acchan, and is only the third successor of the original Mayuyu.
- In one of the audio dramas, Suzuko show images of MK3, as well as MK2 to the other members of NO NAME, and it's stated that they are identical.