The video contains the production process and explanatory subtitles.
From 03:33, the Design making tutorial image will start.

My channel's image wallpaper and videos are
It is a second processing and design of images that can be used 100% commercially available.

I use Adobe Photoshop, Illustration, After Effect, and Premier
Create a video.

On the Blue Rain channel, in the case of secondary creations that have added new creativity to the original work,
It is produced by modifying and adapting the license through sound sources and videos.
This falls within the scope of 'fair use' and does not violate copyright law.