I have seen a page of the protagonist of this dojinshi walking on all fours and with a mask covering her face, but I can't find her anywhere. Nor does it seem that this dojinshi has more episodes published. Would anyone know the origin of these scenes?
@Snappann It's not that scene. The two pages that I saw are of the same blue color and the girl wears the same discipline swimsuit, in addition to having the same mole. I will publish those pages in some networks to see if it is possible to find them.