Sachi is a very beautiful idol from Numazu, south west of Tokyo. She has a unique, chilled-out style, and is very cool. She performs often in Tokyo and Nagoya, and often duos with her friend Momo. They are a truely epic pair.
Showroom recordings: https://www.youtube.com/playlist?list=PLXgNDMeTqTn5GWKC-D0ylf0n-pUPWYzRR