In the later stages of her career, she performed under the name Lara Anzai. Current Status
| | Stage Name | Years Active | Key / Notable Works | Significant Events | | :--- | :--- | :--- | :--- | :--- | | Phase 1 | Utsunomiya Shion (宇都宮しをん) | 2013 – 2014 | SOE-992 (Debut)、 SNIS-070 (Golden Ratio)、 SNIS-110 、 SNIS-147 (Your search topic) | Debuted with S1; became an instant star known for "golden ratio" body. | | Phase 2 | RION | 2015 – 2018 | SNIS-517 (Comeback debut)、 SNIS-623 (The "Pokkiri" / wardrobe malfunction series) | Returned after a year-long hiatus; continued to be one of S1's top exclusive actresses. | | Phase 3 | Anzai Rara (安齋らら) | 2019 – Present | SSNI-662 (Comeback)、 OFJE-354 、 OFJE-410 (Best-of compilations) | Re-debuted under her gravure name; achieved Oricon and FANZA chart success. | utsunomiya shion 147
Japanese adult video titles rely heavily on alphanumeric catalog codes (e.g., brand prefixes followed by a 3-to-4 digit sequence). Numbers like "147" frequently point to a specific premium release or collection volume under her respective labels like S1, Moodyz, or Idea Pocket. In the later stages of her career, she