Biography and career
Anzai spent part of her childhood in Taiwan. She grew up watching anime series like Cardcaptor Sakura and Super Doll Licca-chan, as well as being exposed to the Zoids franchise through her brother. She took an interest in voice acting while in elementary school when, as part of a class presentation, she had a part in a historical play. So she could familiarize herself with the voice acting profession, her brother loaned her a DVD of the series Magical Girl Lyrical Nanoha A's, and she was influenced by the acting and singing of voice actress Nana Mizuki. Watching the series motivated Anzai to pursue a voice acting career. To hone skills, she also listened to roles voiced by Sanae Kobayashi, Aoi Yūki, and Kana Hanazawa.
Anzai debuted in 2017 after graduating from Pony Canyon's P's Voice Artist School. She started out playing minor roles in the anime series Clean Freak! Aoyama kun, Angel's 3Piece!, and Love and Lies. The following year, she was cast in her first major role, as Momo Minamoto, the protagonist of the anime series Release the Spyce. She, along with the series's other major characters, also performed the show's opening ("Supatto! Spy & Spice" (スパッと！スパイ&スパイス Supatto! Supai ando Supaisu)) and ending ("Hide & Seek") theme songs under the group-name Tsukikage. While promoting Release the Spyce, she appeared at C3 AFA Jakarta 2018, the last to be held in Indonesia. In October 2018, as part of promotions for the Onsen Musume multimedia franchise, she was named a Japanese ambassador for the hot springs of Hsinchu County, Taiwan.