Thank you for your comment.
The character sprites in the screenshot were not created by me.
This character sprite was generated by a different software package that comes with the "WOLF RPG Editor" game development software.
An English version is also available.
WRPGE English Download | Widderune
https://widderune.wixsite.com/widderune/wolf-rpg-editor-english
The "Graphic Synthesizer" included in the Full Package is the software.
The Japanese version of the Terms of Service now allows character sprites created in the Graphic Synthesizer to be used outside of the WOLF RPG Editor.
The English version probably has the same terms and conditions, but I'm not sure of the details.