That, my friend, is the magic of filling, normally games of this type and others focused on a "fetish" instead of a story do not have much future, however, the devs put scenes, "paths", "mini- stories" and in general filler to be able to extend it and continue charging, even if it means that the game loses all meaning by adding unusual content.
It has already been seen in many games, and in this case it is very likely that it will happen, they will end up placing more characters to "spice up" the game due to lack of creativity in the story, even if this loses sight of the original idea. .
I hope I'm wrong but it almost certainly will happen.