If you want to know more about the Ecchi Extended project, you can read about it HERE.

MANGA info:
Manga name: Onna Shunin Kishi Mieko; 女主任・岸見栄子
Author/Artist: Xiaowoo
Serialized In: Comic Namaiki!
Status: 5 Volumes (Complete)

RAW info:
Digital: Yes
Tankobon: Yes
Resolution: v4 (1144x1618)

ECCHI EXTENDED info:

Volume 4:

• 9 pages have been added.
• 2 pages have been replaced.
• 3 pages were edited.
• Replaced pages are at their original resolutions, so they have better quality.

Unfortunately, there wasn’t much to work with this manga; I could only find resources to edit 2 pages.
But to complement the volume I added some new pages, with some extra images (nothing too out of context).