Instead of handling local .mp4 files, you can stream the series officially:
: To play an .mp4 file with various subtitle features (like syncing or custom fonts), popular choices include VLC Media Player or Stremio . 2. Legal Streaming Alternatives
: Resources like Movavi and VideoProc maintain updated lists of websites where you can find anime in high-quality formats or with built-in subtitles. Are you having trouble playing this specific file, or