Shizaki attended the
Senzoku Gakuen College of Music, where she was a student of the Rock and Pop Course Vocal Department. In 2014, she played in a band at
Syracuse University in the United States as part of her school's foreign exchange program. On November 7, 2018, during
Roselia's Vier concert at Shinagawa Stellar Ball, Shizaki was revealed as the band's new keyboardist; at the time, she had been playing the piano for 12 years. During a December 2018 interview with
Geki Rock, bandmates
Megu Sakuragawa,
Aina Aiba, and
Haruka Kudō noted Shizaki was quickly accepted by fans and the band as her shy personality is similar to Rinko's; Sakuragawa, who portrays Rinko's best friend Ako, described her conversations with Shizaki as feeling like she was talking to her character. Shizaki's first full show with Roselia was the BanG Dream! 7th Live on February 21, 2019 (subtitled Hitze) at the
Nippon Budokan. Her anime debut came in
BanG Dream! 2nd Season, while her voice replaced Akesaka's as Rinko in
Girls Band Party! with the game's second anniversary update in March. In 2019, Shizaki joined Bushiroad's newly-created
D4DJ franchise as Rei Togetsu of the unit Happy Around!. She had previously sang at the Bushiroad DJ Live Vol. 2 event on April 5 at
Shinkiba Studio Coast, where
D4DJ first concert was announced. Shizaki's debut show with
D4DJ was the project's second live on October 14 at Shinagawa Prince Hotel Stella Ball. On January 9, 2021, the
BanG Dream! franchise announced that Shizaki tested positive for
COVID-19. The test prevented her from participating in the project's Raukure! and Asuhamo events two days later as she underwent treatment. Shizaki was cleared to resume activities nine days later after negative tests. The following year on January 18, she was diagnosed with
Reinke's edema, which affects the vocal cord, forcing her to miss
BanG Dream! and
D4DJ events until the end of February. On August 14, 2022,
D4DJ announced her departure from the franchise. On August 31, 2022, Shizaki left Ace Crew Entertainment and became freelance. ==Filmography==