Tchaikovsky

Also known as Tchaiko.
The real-life Tchaikovsky was a man.
For some reason, she is now a beautiful girl who speaks in the Tohoku dialect.
Bądarzewska and the idol unit CLASKEY:KLASKY (CLA:KLA for short).
She is one of the few people who can understand the intentions of Bach's musical terms.

(Source: classiscaloid.net)