Morning Musume.'18's Iikubo Haruna's special one-day autumn Graduation Concert held at Nippon Budokan.
A Japanese TV drama starring a full Hello! Project cast. The drama also featured Sakurada Dori, and former Hello! Project members Iida Kaori, Yasuda Kei, Ishikawa Rika, Kikkawa Yuu and Saho Akari. A mathematics genius girl Machida Nina (Tanaka Reina) starts in a new school and attempts to find her elder sister who vanished from said school one year ago. The story, developed with the cooperation of the International Mathematical Olympiad in Japan, set at a specialized math school, where Tanaka Reina and Michishige Sayumi both take on the roles of “Suugaku Joshi” (“math girls”). Naturally, the show incorporates various mathematical functions and formulas into the story and dialogue.
佐藤優樹 (Sato Masaki) is a Japanese pop singer. She is a former idol under Hello! Project as a 10th generation member of Morning Musume., as well a former member of the SATOYAMA movement units Harvest, Jurin, and Sato no Akari. She graduated from both Morning Musume. and Hello! Project on December 13, 2021 due to health issues. As of April 2022, she is part of the M-line club.