is a 2023 Japanese adult film production from the studio. Key Details Starring: Saika Kawakita (河北彩花). Release Date: December 2023. Studio: S1 No. 1 Style (part of the SSIS series).
This four-letter code identifies the specific studio and the line of production. Labels under major distributors use these prefixes to maintain brand identity and help consumers find specific styles of content.
This article was last updated in June 2026. SSIS-951.mp4
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| Attribute | Details | |-----------|---------| | Stage Names | 河北彩花, 河北彩伽, 萌名 | | Date of Birth | April 24, 1999 | | Age (as of June 2026) | 27 years old | | Birthplace | Chiba Prefecture, Japan | | Height | 169 cm (approximately 5′6½″) | | Measurements | 87–57–86 cm | | Bra Cup Size | E | is a 2023 Japanese adult film production from the studio
Following a major corporate restructuring in the Japanese adult entertainment industry, several legacy studios were consolidated. "SSIS" became the new alphanumeric prefix for videos produced under the S1 No. 1 Style label, one of the largest and most prominent studios in that specific market.
When working with MP4 files, there are several factors to consider: Studio: S1 No
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