As enjoyable as the anime adaptation may be, I urge everyone to read the light novel itself!! The anime glossed over many, many important scenes which are plenty enjoyable, but one thing I feel the novel captures a lot better are Oda’s thoughts, which definitely help you understand his (slightly odd) way of thinking. Here’s just a few of the many scenes you’d have missed out on if you only watch the anime:
The shooter was around three meters away from Dazai, compared to the anime which was near point blank (even I could have shot Dazai at that distance without training, please.) Also, Odasaku’s thoughts about Dazai’s expression. In comparison, he’s a lot more vocal about asking Dazai to stop talking after having his hand forced.