Min Upd — Sone431engsub Convert021018

Description: sone431engsub_convert021018_min_upd is a converted and updated English-subtitled media file created on 2021-10-18 (conversion date inferred from filename) and optimized for minimal file size while preserving audio and subtitle quality. This release contains cleaned video, synced English subtitles, and metadata tags for compatibility across common players and archive systems.