Dazai was in the mood for being a little goofy with this one. It's like we get to experience his train of thoughts during the writing process, it's incredible that he can combine his narrator voice with the story seamlessly. It doesn't end up being a disjointed piece of work. He's mocking his own writing, I can tell. It reads to me like a depressive episode in the middle of writing a big projects but having a lot of hard time doing that and coping with that by making (and actually finishing it) a little side project. The hilarious kind this book has is the self-deprecating humor that gen-Z has. It's so depressing that it's funny. 

Here, Yozo isn't performing being a clown like he did in No Longer Human, but he explore the clownery of human behaviors in certain situations by being an observer. Love it. Such a unique writing style.