This filename refers to a specific anime release from the group .
Common anime series that have had "Episode 11" releases by NC-Raws or similar groups around this time include: Tougen Anki [NC-Raws] - 11 (B-Global 1920x1080 HEVC AAC MKV...
To identify the "good piece" (the anime title), we need to look at the text immediately preceding the "- 11" in your file name. Based on the naming convention of this group, the structure is usually: [NC-Raws] Title of the Anime - Episode Number (Resolution Codec Audio Format) This filename refers to a specific anime release