Ssis-137-mr-es.mp4 -

: Usually indicates that the file contains English Subtitles . .mp4 : The digital video file container. What is SSIS-137?

: S1 content is officially sold through platforms like DMM or Fanza , though these often require a Japanese IP address or specific payment methods. SSIS-137-MR-ES.mp4

If you are looking for more details or want to find the official release: : Usually indicates that the file contains English Subtitles