Shizaki attended the Senzoku Gakuen College of Music, where she was a student of the Rock and Pop Course Vocal Department.
[2] 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.
[1] In addition to playing for the band in live performances, she replaced the departing Satomi Akesaka as the character Rinko Shirokane in the BanG Dream!
[3] 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.
[9] Shizaki's debut show with D4DJ was the project's second live on October 14 at Shinagawa Prince Hotel Stella Ball.
[13] The following year on January 18, she was diagnosed with Reinke's edema, which affects the vocal cord, forcing her to miss BanG Dream!