4 ideas
Nire Kiichiro, a flamboyant self-made doctor, builds a gaudy Western-style mental hospital in Tokyo's Aoyama district, complete with columns and towers, as a monument to himself and his family. The family's fortunes then slide through the militarist years until the hospital is finally destroyed in the 1945 air raids.
An enterprise built on one charismatic founder's showmanship runs on spectacle rather than competence. Examples are imposing architecture, grand titles, and self-promotion. The heirs inherit the costly stage but not the performer's gift, so the institution is gradually hollowed out and becomes a burden it was never designed to be.
The saga tells national disaster through the petty vanities, quarrels, and obsessions of individual family members, so great events register only as they intrude on private concerns. The comic, small-scale focus makes the eventual collapse more affecting. The characters keep up their absurdities right up to the moment history destroys what they were fussing over.
The family continues through a mukoyoshi, a son-in-law adopted to carry on the name and the hospital. This separates the obligation to preserve the house from any real attachment to the founder's vision. The dutiful successor spends his life maintaining an inheritance he neither chose nor fits, which drives the family's generational decline.