>>2583623My most realistic ideal ending chapter for the series is one last onsen scene with Suzune, Nao, Yuuko & Yoko all lined up for the most grand display of torpedo titties possible.
A better ending then that would be to include the onsen scene and also have Arashi finally become a man and just haremize Mikoto, Sayo, and Hinako.
Elder god tier ending is he actually makes a doujin featuring all the girls in an orgy.