Looked for this game's CG on eh, didn't find it, not even in Expunged, took the matter into my own hands.

Extracted using GARbro. Images keep their original file names, I just custom-sorted title screen and event CGs to the front. Images which are just one color were removed.

https://vndb.org/v22846

https://www.getchu.com/soft.phtml?id=1001775
https://www.dlsite.com/pro/work/=/product_id/VJ011892.html

Base +27

does the female get swapped here? or her fiance and the MC?

Base +6

Swap happens between MC and her fiance, so not really a 'Mixed'

Base +6, zelke +6

@vivendicrust
Technically this was already uploaded as a CG set called 幼なじみは淫乱牝教師 with completely different story and without that exaggerated blushing.

Base +11