The naming convention in your query suggests a high-quality digital release:

: The "7" likely starts the resolution tag (e.g., 720p), which defines the vertical pixel count of the video. Subtitle Information

: Less common for WEB-DLs, where text is "burned" into the video frame.

: Subtitles built directly into the MKV or MP4 container, which can be toggled in players like VLC or MPC-HC.

For this specific release, subtitles are generally included as:

: Separate text files often found in the same folder as the movie.

: It was produced by Studio Pierrot and directed by Tsuneo Kobayashi, with original character designs by the manga's creator, Masashi Kishimoto. Technical File Details

: Indicates the video was captured directly from a streaming service (like Netflix or Crunchyroll), often providing the best visual quality without the watermarks found in "HDRip" versions.