This set of stories has been out for years, but as of today, still only some of it was translated.
So I did go ahead and tried my best to translate the rest (beside the novel part, so pages 13 to 29)
I don't speak japanese and english is not my main language either, so don't hesitate to point out mistranlations or even grammatical errors.

Original japanese version : http://e-hentai.fbk.tokyo/index/g/1178874/eaf2a45ec9/
Partial translation (that I included here) : http://e-hentai.fbk.tokyo/index/g/1193904/c385a44b21/

Update 06/04 : Fixed a small grammar error on page 29.

good job,hope you can translate more gts

Base +2