I'm not sure specifically which 'Dizzee' you are referring to. There could be many people with that name. If it's a well - known public figure, more context is needed to tell the full story of the stabbing.
One reason could be revenge. Maybe someone he wronged in the past, like a fallen angel or a demon he betrayed, decides to take their vengeance by stabbing him. It adds a layer of drama to the story.
Inosuke survives throughout the manga. The story doesn't have his death as part of the plot. His character remains active and plays a significant role until the end.
One interesting fanfiction could be 'Lucifer's Trial by Blade'. In this story, Lucifer gets stabbed during a battle in the underworld. The author vividly describes his pain and the chaos that ensues. It's a great read if you like action - packed fanfics.
First, you need to understand Inosuke's character really well. Know his strengths like his amazing physical abilities and his weaknesses like his lack of social graces. Then, choose the world you want to cross him over with. For example, if it's a fantasy world, figure out how his abilities would work there.
Well, Inosuke's origin story is quite interesting. He was found in the mountains as a baby and was raised by a family of boars. This led to his rather unorthodox and savage behavior. He didn't have any proper human upbringing which is why he often acts on his instincts. For example, he is very aggressive in battles and doesn't really follow the normal social norms that other characters do. His origin also influenced his unique fighting style which is very much based on brute force and his animal - like agility.