I posted the black, white and pink boxes (of miss machinko) either in this thread or the other one specific to the manga/anime. As someone said those boxes are doujishin made by the author of the manga. Which means that the art style is the same but the plot doesn't enter in the main story, (from which are those pages posted by sporzem).
ps: the posts are
https://forum.oneclickchicks.com/show...postcount=4289
https://forum.oneclickchicks.com/show...postcount=4290