Silver Garden

Also known as Toraneko

https://web.archive.org/web/20090603031901/http://silvergarden.rash.jp/ (old website)
https://www.pixiv.net/en/users/269480

End of Midsummer Mai Hime Doujin released Feb 14 '10 Drama Shizuru x Natsuki Tragedy Yuri
All Should Thaw Mai Hime Doujin released Aug 26 '17 Drama NSFW Romance Shizuru x Natsuki Yuri