The Professor EXP
by Galaxionite
From the letters page: The Professor EXP: a visual novel about parody, humor and MILF, developed by Galaxionite. It runs on Ren'Py and puts you in the role of a male protagonist. Status: still in development, version 0.2.5. Available for Windows, Mac, Linux and Android; 395 MB.
From the box: “Enjoy a Story Focused adult Visual Novel, Parody of Pokemon . Inspired loosely by the events after USUM! Eight regions. Eight trophies. One broken heart.”
Screens
2 screenshots from the game's own gallery.
