This is a production code used by the Japanese studio Rocket (often stylized as RCT ). In the Japanese AV industry, these codes are the primary way to identify specific releases.
The protagonist acquires a magical device—commonly a smartwatch, stopwatch, or mobile app—that allows them to freeze time and move freely among frozen people. video title rctd404 japanese time warp rumi fixed
RCTD-404 Title Translation: "Time Warp: Fixed Sex Doll - Rumi" Starring: Rumi (Kanan Kiri) Studio: ROCKET This is a production code used by the