Cutie pie Mei was a part of KSS Hokkaido since 2016, here are her latest profile pics.
I never personally considered Mei for Morning Musume, but then again there's a gazillion kenshuusei to consider. The debut makeover certainly makes her stand out even more. And she seems to have this enthusiastic energy about her, it's very charming.
One compilation of Mei during her KSS Hokkaido days, more videos in dailymotion
here.
Mei is also known as Panda-sensei. (45 seconds in)
Her English is about as adorable as she is, and she's been learning via Disney's World of English since she was 9 months old. Her pronunciation is a little bit wonkadonk but she replied to Miki's English question immediately in the reveal stream. Hanging out with Miki should turn her into a fluent speaker in no time. xD