A new version has been released with additional characters in 2019/04/29
Haven't found 1.8 anywhere, only 1.7...
https://www.dlsite.com/maniax/work/=/product_id/RJ144379.html
https://mega.nz/#F!N54T3YjZ!XTa86s1YE513GhMXScw6bA
gonna leave it for 1 week/2 weeks, take it and share it with the others that didnt get it in time, have fun