Yamamoto Sayaka Test ~EXTRA STAGE~ is a game in which you answer various questions about Yamamoto Sayaka in the form of a quiz, designed for those experts who find Yamamoto Sayaka Test to be insufficient.
We will dig deeper into the quiz questions asked in the Yamamoto Sayaka Quiz and ask a variety of questions about Yamamoto Sayaka.

If you answer all the questions correctly in all three categories that will be added sequentially, you will receive a certificate image that only "Yamamoto Sayaka Grandmaster" can get!
Please give it a try!

<Category release schedule>
Friday, March 25: EXTRA STAGE①
April 1st (Friday): EXTRA STAGE②
April 8th (Friday): EXTRA STAGE③

how to play

• ・This content is exclusive to Yamamoto Sayaka 's fan club "SYC" members.
• ・You can challenge each category once per day.
• ・If you answer all questions correctly in each category, one letter of a keyword will be displayed.
• ・If you submit the three keywords in order, you will be able to access the certificate receipt page.