I will open the drawing about 10 years ago
Its open source.
If you use it or copying, reprinting, that Everything alright.
(However, use it on your own responsibility, please.)

I hope A whole lot of people read it.
I would be happy if more people like this genre increase.

*2022/04/23 Update
The novel version (original) of "Last Battle" is on the old homepage of the original author.
It is written in Japanese, but please read it using Google Translate etc.
http://death13.muvc.net/lastbattle.htm