HD 1080p from official website. No watermark version.
Because GYAO has made some changes, it is temporarily unable to get the 1080p source, so replace it with the source of TVer.
Japanese subtitles added.

General Unique ID                      : 195663215724617988817910172167136183000 (0x93335D579980B467A7CAA48ED33D82D8) Complete name                  : [MagicStar] Keiji 7-nin Season7 EP09 END [WEBDL] [1080p].mkv Format                         : Matroska Format version                 : Version 2 File size                      : 1.07 GiB Duration                       : 53 min 20 s Overall bit rate               : 2 885 kb/s Encoded date                   : UTC 2021-09-16 14:37:35 Writing application            : mkvmerge v5.7.0 ('The Whirlwind') built on Jul  8 2012 20:08:51 Writing library                : libebml v1.2.3 + libmatroska v1.3.0  Video ID                             : 1 Format                         : AVC Format/Info                    : Advanced Video Codec Format profile                 : High@L4 Format settings                : CABAC / 4 Ref Frames Format settings, CABAC         : Yes Format settings, Reference fra : 4 frames Muxing mode                    : Header stripping Codec ID                       : V_MPEG4/ISO/AVC Duration                       : 53 min 20 s Width                          : 1 920 pixels Height                         : 1 080 pixels Display aspect ratio           : 16:9 Frame rate mode                : Constant Frame rate                     : 29.970 (30000/1001) FPS Color space                    : YUV Chroma subsampling             : 4:2:0 Bit depth                      : 8 bits Scan type                      : Progressive Default                        : Yes Forced                         : No Color range                    : Limited Matrix coefficients            : BT.709 Duration_Source                : General_Duration  Audio ID                             : 2 Format                         : AAC LC Format/Info                    : Advanced Audio Codec Low Complexity Codec ID                       : A_AAC-2 Duration                       : 53 min 20 s Channel(s)                     : 2 channels Channel layout                 : L R Sampling rate                  : 48.0 kHz Frame rate                     : 46.875 FPS (1024 SPF) Compression mode               : Lossy Delay relative to video        : -66 ms Default                        : Yes Forced                         : No Duration_Source                : General_Duration