In the evenings I read a chapter or two of Rainy Willow, the sweet days of late Meiji and early Taishou, the akogare of objects longing for their owners as, possibly, the owners, all these ex-hatamoto descendants, long for the settled days of the Shogunate and the certainties of a life gone by. Not that noble families are shown in a sympathetic light in flashback: it's all sacrifice for the clan and stiff-lipped gamaning. But maybe for commoners and middle class, that departed order remains as a reassuring memory even as they enjoy the new freedoms of the present, with their new anxieties and uncertainties.
Did anything like that ever happen here? A complete upheaval of society that didn't involve millions of dead? Upheavals we've had, but a whole social reordering at the behest of TPTB, no, I don't think so. Japan's done it twice, though the second time was as ghastly for them as WW1 for Europe.