Haruki is the oldest of three sisters. Legendary voice actor Mitsuo Iwata is her uncle. In the first grade, Haruki began practicing baton twirling, and kept at it for ten years. She has been in the acting and theater industry since her third year of middle school. Her appearances include Alice-in-Project stage productions, commercials, dramas, and music videos. She is described as optimistic and she is often seen smiling or in high spirits.

Filmography

• 2026Revue Starlight —The MUSICAL— The Distant El Dorado — Mahiru Tsuyuzaki / Alejandro Javier Caballero Cruz
• 2025Nemurubaka: Hypnic Jerks — Vocalist at an izakaya
• Possibly the Greatest Alchemist of All Time — Theme Song Performance
• Turkey! Time to Strike — Sayuri Ichinose (voice), Theme Song Performance
• ZatsuTabi -That's Journey- — Theme Song Performance
• 2024Chainsaw Man: The Stage — Kobeni Higashiyama
• Fluffy Paradise — Canadia Osfe (voice)
• 2024Revue Starlight ―The MUSICAL― The Wartime of Farewells — Mahiru Tsuyuzaki
• I Shall Survive Using Potions! — Belle (voice)
• 2023Revue Starlight Band Live "Starry Session" — Mahiru Tsuyuzaki
• 2023Revue Starlight ―The LIVE― #4 Climax — Mahiru Tsuyuzaki
• 2022Musical 「Piofiore no Banshou」 — Lan
• 2022Revue Starlight Orchestra Concert — Mahiru Tsuyuzaki
• EDENS ZERO — Aruna (voice)
• 2021Revue Starlight ―The LIVE― #3 Growth — Mahiru Tsuyuzaki
• 2021Revue Starlight: The Movie — Mahiru Tsuyuzaki (voice)
• Assault Lily BOUQUET — Mai Thi Yoshimura (voice)
• 2020Assault Lily: League of Gardens — Yoshimura Thi Mai
• D4DJ — Towa Hanamaki (voice)
• Rebirth — Yuki Sakuragi (voice)
• 2020Revue Starlight 3rd StarLive "Starry Diamond" — Miahiru Tsuyuzaki
• 2020Revue Starlight ―The LIVE ONLINE― — Mahiru Tsuyuzaki
• 2020Revue Starlight ―The LIVE Seiran― BLUE GLITTER — Mahiru Tsuyuzaki
• 2020Revue Starlight: Rondo Rondo Rondo — Mahiru Tsuyuzaki (voice)
• 2019Revue Starlight 2nd StarLive "Starry Desert" — Mahiru Tsuyuzaki
• 2019Revue Starlight Orchestra Live "Starry Konzert" — Mahiru Tsuyuzaki
• 2019Revue Starlight ―The LIVE― #2 Transition — Mahiru Tsuyuzaki
• Shoujo☆Conte All Starlight — Mahiru Tsuyuzaki
• Revue Starlight — Mahiru Tsuyuzaki (voice)
• 2018Revue Starlight 1st StarLive "Starry Sky" — Tsuyuzaki Mahiru
• 2018Revue Starlight ―The LIVE― #1 revival — Mahiru Tsuyuzaki
• 2015Replicant Eve — Saya Saeki

Appearances as themselves (6)

• 2025harmoe 3rd LIVE TOUR "ii’m here" — Herself
• 2023harmoe 2nd LIVE TOUR「GOOD and EVIL」 — Herself
• 2022harmoe 1st LIVE TOUR — Herself
• 2020Revue Starlight 3rd StarLive "Starry Diamond" - Documentary — Self
• 2019Revue Starlight 2nd StarLive "Starry Desert" - Documentary — Self
• 2018Revue Starlight 1st StarLive "Starry Sky" - Documentary — Self