Just finished the Mare afterstory. If we're gonna be completely honest here, her romance has been completely overshadowed by all of the plot that happened in other routes. I personally don't mind however, I prefer this since I was pretty curious about some of the subplots that were happening in the story. H-scenes lacked dolphins but I was skipping through it with breakneck speeds because even though Mare had mellowed out as a tsun (a little), I still never liked her from the beginning, and this sentiment isn't going to change anytime soon.
I checked the game, there's now 5 short stories for each of the other heroines. I'm going to do them all before finishing this fine meal with Yume as my last course.