is a Japanese adult video title released under the S1 NO.1 STYLE

Unlike simple upscaling (which artificially stretches pixels), the "new" 4K transfer of SSIS-924 involves revisiting the original master tapes or digital assets. The footage has been re-encoded using advanced algorithms that preserve natural grain and texture while quadrupling the pixel count. The result is a native 3840 x 2160 resolution—four times the detail of 1080p.

If you’re a fan of high-quality digital content, this is a must-add to your library.

: Primarily available through digital streaming and specialized Blu-ray releases.