Niina — Shiori

At the time of joining Non-Fiction in June 2025, she was 17 years old , making her the youngest member of the group at that time.

is a contemporary Japanese idol and performer, primarily known for her membership in the J-pop group Non-Fiction and her association with the broader idol collective HEROINES . 🌟 Career Profile shiori niina

Known for her presence as a "new generation" talent within the HEROINES ecosystem, she contributes to the high-energy, performance-heavy style typical of Non-Fiction's discography. At the time of joining Non-Fiction in June