Mayu Watanabe is not as young and innocent as she looks. Hey at 18 years old, she is mature enough to showcase a finely toned body and a behind that is rapidly becoming her best asset, but in AKB48, she is still considered very young especially when she dons their sailor fuku. Although known as the Idol Cyborg, she is charmingly warm in her bikinis and could be on her way as the next face of AKB48 because she is acchan approved. LOL! Look for this girl to make it big time soon, as AKB48 keeps on rising in popularity all over the world.