Not having read the'my reason to die novel', we can only speculate. There could be a central character who is at the heart of this story about having a reason to die. This character might be a loner, someone who has been pushed to the edge by society or personal circumstances. There could also be side characters like friends or family members who either contribute to the main character's situation or try to help. For example, there could be a best friend who is completely unaware of the main character's inner turmoil until it's almost too late, or a family member who has their own problems and unknowingly adds to the main character's despair.
The'my reason to die novel' might have a complex plot. It could be that the main character is in a world that is so cruel or unforgiving that they find no purpose in living. It could explore psychological aspects such as the character's inner turmoil, their battle with mental health issues perhaps caused by external factors like a difficult family situation, social ostracism or a failed career. Without reading it, it's hard to tell for sure, but these are some of the common themes that could be present in a novel with such a title.
According to the information provided, it was impossible to determine the exact plot of the " stuffed half an arm " in the manga for no reason. I suggest you check out the relevant comic reading platforms, such as the comic market, reading comics, etc., to obtain more accurate information.
While waiting for the TV series, you can also click on the link below to read the original work of " Little Fox Demon Matchmaker " to understand the plot in advance!
Bakugo is not dead in manga chapter 362. The events of that chapter didn't involve his death. Usually, such major plot points are well-signaled and this wasn't one of them.
In manga chapter 109, Dazai survives. The plot doesn't lead to his death at that point. Maybe there are some intense situations, but he makes it through.