山本彩クイズ4月19日正解＆4月20日クイズ発表！

山本彩クイズ4月18日正解＆4月19日クイズ発表！

Yamamoto Sayaka quiz April 17th correct answers & April 18th quiz announcement!

SYC special project! The Yamamoto Sayaka Quiz Project has begun!

WEB RADIO special edition released!

SYC/ SYC MOBILE Yamamoto Sayaka WEB Radio special project announced!

Yamamoto Sayaka LIVE TOUR 2020 ~ α ~ × SYC/ SYC MOBILE special project!

Information regarding Yamamoto Sayaka SYC renewal benefits

TV Asahi "Music Station" SYC/ SYC MOBILE members wanted to watch

Information about the 2nd issue of the SYC Newsletter Yamamoto Sayaka