How to evaluate the novel Paradise Lost?

I think Paradise Lost originated from Abe's incident, but Junichi Watanabe was able to carve the words so beautifully and integrate the scenes, bringing this nondescript love to a beautiful place. Junichi Watanabe's early works belong to the medical school theory, and most of them are closely related to the theme of life and death, describing the bumpy fate of characters. For decades, I have also been persistently exploring the love between men and women. After years of art and life accumulation, I finally wrote Paradise Lost at the age of 60. The highlights of many literary details are remarkable, such as the first description from the perspective of physiology and social ethics; For example, there are six chapters in the book, and the titles of each chapter are related to solar terms or time, which somewhat implies their love and fate.