S1 No. 1 Style, known for high-budget productions and exclusive talent contracts.

Physical collectors' editions were released on October 24, 2023.

The content is available for streaming and download via official Japanese providers like DMM (now FANZA). Cast and Performance

The film was released in Ultra HD, a standard for S1's top-tier "Exclusive" series ( JAV Trailers ).

Saika Kawakita, an "exclusive" actress for the S1 studio.

To meet modern viewing standards, the release was made available in several high-fidelity formats:

The keyword refers to a high-profile release in the Japanese adult video (JAV) industry featuring the popular actress Saika Kawakita (also known as Ayaka Kawakita) . Released on October 19, 2023, by the premier studio S1 No.1 Style , the title has gained significant attention for its endurance-focused concept and technical production quality. Core Content Overview

The production features a roster of well-known industry veterans to support the marathon format, including performers such as , Taku Yoshimura , and Muscle Sawano ( JAV Red ). The "exclusive" nature of the film often focuses on Saika Kawakita's ability to maintain her performance throughout the grueling 10-hour shoot, showcasing her as one of the industry's leading stars.

Approximately 179 minutes of edited footage derived from the 10-hour session. Director: Mon ℃ (Crest). Why the "Exclusive" Tag Matters

In the JAV market, the term "exclusive" (or senzoku ) carries weight. It indicates that the actress is under a dedicated contract with a single studio, usually resulting in higher production values, better cinematography, and more extensive marketing campaigns compared to "project" (freelance) actresses. Titles like SSIS-913 are marketed as premium events for fans of the studio's top talent ( European Marketing Academy ). Technical Specifications