Dazai is not based on a true story. Usually, characters like Dazai are formed through the author's imagination and artistic expression to create an engaging narrative for the readers.
Osamu Dazai's Collection was a collection of novels by the Japanese novelist Osamu Dazai. It included many works covering different styles such as novels, essays, and essays. The collection's theme was to describe the dark side of human nature. The style was humorous and satirical, and it was deeply loved by readers. Among them, the most famous works included "The World's Disqualification","The Setting Sun","The Wife of Wei Yong" and so on.
Well, it depends on the context. But generally speaking, just 'the nurse' is a very general term. It could refer to any nurse in a wide range of stories. While 'the good nurse' is more specific. It implies that there is a particular story or concept related to a nurse who is good. For example, if there is a story specifically about a nurse who has done many great deeds, that's 'the good nurse' story. But 'the nurse' could be in a completely different story, like a horror story where the nurse is a spooky character. So, they are not the same story.