HD 1080p from official website. No watermark version.
Japanese subtitles added.

General Unique ID                      : 226702409916709433854482929305871743704 (0xAA8D4BC4D7C74900A206B17C59547AD8) Complete name                  : [MagicStar] Mushoboke EP01 [WEBDL] [1080p].mkv Format                         : Matroska Format version                 : Version 2 File size                      : 487 MiB Duration                       : 23 min 34 s Overall bit rate               : 2 888 kb/s Encoded date                   : UTC 2021-10-04 22:44:44 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                 : [email protected] 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                       : 23 min 34 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 Duration_Source                : General_Duration  Audio ID                             : 2 Format                         : AAC LC Format/Info                    : Advanced Audio Codec Low Complexity Codec ID                       : A_AAC-2 Duration                       : 23 min 34 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