Koto Hirai
Also known as こつ, 平井こと, Kochan, Kotsu
Career
Active 2026 – present
Biography
About Koto Hirai
Koto Hirai, a 25-year-old actress and gravure idol from Aichi, Japan, began her career in 2026, stepping into the industry at age 25. Before her solo work, she performed as a J-pop idol, a background that adds a layer of stage experience to her current roles. Standing at just 5'2", her petite frame and slim build are complemented by natural 34F breasts, a combination that has drawn considerable attention. She is known for implied nudity in her solo projects, a choice that highlights her comfort with her body while maintaining a level of artistic discretion.
Her measurements of 34-24-32, with a waist-to-hip ratio of 0.75, underline a physique that has become a signature in her work. Brown hair frames her features, and while she doesn't rely on social media as a primary platform, her Instagram following has grown to 78k, reflecting a steady interest in her career. As a former idol turned solo performer, Koto straddles two worlds, bringing a polished professionalism to her artistic endeavors. Her journey from group performances to individual projects illustrates a deliberate evolution, one that continues to unfold.
Record
Profile details
Personal
- Years Active
- 2026-present (started around 25 years old)
- Birthplace
- Aichi, Japan
- Ethnicity
- Asian
Body
- Hair Color
- Brown
- Measurements
- 34–24–32 (B–W–H) · WHR 0.75
- Bra/Cup Size
- 34F show conversions - UK: 34E, EU: 75F, AU: 12F, JP: 75F
- Boobs
- Real/Natural
Performances
- Solo
- Nudity (Implied Nudity Only)
Extra
- Instagram Followers
- 78k (as of February 2026)
Frequently asked
How did Koto Hirai's background as a J-pop idol influence her current career?
Koto's time as a J-pop idol provided her with stage presence and performance experience, which she now applies to her acting and gravure work, though she has shifted from group performances to solo projects.
What is notable about Koto Hirai's physical profile in the context of her work?
At 5'2" with a petite, slim build, Koto features natural 34F breasts and measurements of 34-24-32, a combination that stands out in the gravure industry and is often highlighted in her photo sets.
Given that Koto is involved in gravure modeling, what type of content does she produce?
Her solo content involves implied nudity only, meaning she poses in ways that suggest nudity without exposing anything, maintaining a level of artistic discretion.
Did you know
- Koto Hirai's bra size is 34F in Japanese sizing, which converts to 34E in UK sizing and 75F in EU sizing.
- She was born on Thursday, October 26, 2000, making her an early 2000s baby.
- Koto's waist-to-hip ratio of 0.75 is often cited as a classic 'hourglass' proportion.
- Her Instagram following of 78k has grown since she began her solo career in 2026.
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