Alright, i was wondering why the translation just abruptly stopped at chapter 23, so i went ahead and read the raws. And, well, it's completely derailed. The main story is just thrown away for side storys with all the chicks that showed up in the beauty contest. And then the MC proceeds to start a cultural revolution, where girls from all around the world start going nude in public, and he becomes some weird cult-leader for them all. I couldn't make this up if i tried. I think the translator did us all a favor by not translating the rest.
I've read his other works too, and this seems to be a pattern. I think what happened is that Itousugi wants to write a memorable piece of fiction. He wants to draw a manga that people will really remember him for. I say this because of his afterword in Aki Sora, where he talks about his friend who died of cancer, but still mananged to become a fairly well known author, even being on good terms with Hideo Kojima himself (Project itoh was the authors name). But he isn't able to think up of a good story or ending, and all he's been drawing is wish fullfilment manga that is borderline hentai. In his frustration, he tries to come up with outlandish out of nowhere endings for his manga in the hopes of it turning out to be a good story.
Anyways, read the raws if you want some half baked nudity, but there isn't much else. Just think that the ending has the father dying, the MC getting together with the president, the butler gets with Alice and lives with her mom, while Anzu just moves on with her life. The end. There's nothing else to see, because the story turns into something else entirely after this chapter.