lol yeahs he's funny, but "After Story" refers to Nagisa's after story route in the game, which is very dramatic, tragic and sad so expect the series to take a turn away from it's current comedic feel soon.
But on a better note they are already setting it up for the "True Ending" ((gained with 100% completion of the game) (with all of the dream realm scenes in first season and current season. They have a lot of purpose n the little girl isn't just some random girl)), witch pretty much makes everything happily ever after which is what you'll want when you see everything thats going to happen.
Anyway I have high hopes for this season and a lot of us who know the story already are really hoping they stick with the plot of the game.