Responses
There's Gaiden, but only Rin's chapter is translated...
Japanese:
The Rin story from Togainu no Chi Gaiden by Kabura Fuchii
http://maryborsellino.com/rin/TogainunoChiGaidenKaburaFuchii.pdf
The Rin story from Togainu no Chi light novel by Ikumi Kazuha
http://maryborsellino.com/rin/TogainunoChiIkumiKazuha.pdf
English fan-translated:
https://little-tomcat.tumblr.com/post/99923132233/under-the-moon-by-kabura-fuchii
I have the book in Japanese, I can take pictures of it if someone who knows how to translate can do that for us!!
Is there a novel