As I predicted in my entry on Taku Mayumura in the Encyclopedia of Science Fiction, his 1778 Stories for My Wife is the work that much of the Japanese media chooses to remember him by.
“In 1998, when Mayumura’s wife was diagnosed with terminal cancer, he began Nichigawari Ichi-hanashi [‘A Story A Day’] (1998) in order to distract her from her condition. Purportedly writing solely for an audience of one, this project would eventually extend to ten thousand pages, and endure for several years past Mrs Mayumura’s original estimated terminal date. Tsuma ni Sasageta 1778 Hanashi [‘1778 Stories for My Wife’] contains 19 tales of varying length, written in daily three-page instalments. The story of Mayumura’s Scheherazade-like attempt to keep death at bay was subsequently adapted into the film Watashi to Tsuma no 1778 Monogatari [“1778 Stories of My Wife and I”], likely to endure as Mayumura’s own epitaph and best-known work in the modern Japanese mainstream.”