bunch of new characters were introduced that i give 0 fucks about. let's all be honest now, this is a borderline hentai manga, absolutely no one gives a fuck about a bunch of ugly old men being introduced. especially when they contributed nothing the entire arc before being introduced.
in that world, the alternative of Microsoft excel was called macrohard incel. And it was invented for the sole purpose of keeping track of who Takamichi fucked and not fucked and other details.