| Up to the 20th volume were published monthly, but the 21st volume published in 1989 was a collection of letters divided into three sections, and the 22nd volume published in 1992 was divided into two sections, and each was sold for the price of approximately 15,000 yen. |
20巻目までは毎月刊行されたが、21巻は書簡集上中下巻で1989年に、最終巻の22巻は上下巻で1992年に、各巻とも1万5千円前後で刊行された。 |