I understand, of course it makes more sense. I'll leave you with this kanji: 超次元. Google Translate translates it as “hyperdimensional,” and ChatGPT translates it as ‘superdimension’ or “beyond dimension.” I suppose that even if it says there is a “superdimension,” there has to be a context for it to be considered 5D or 6D. Of course, this kanji appears in the chapter title..
And yeah, having it in the title would make it even less relevant