Light Yagami is still a main character in the short stories. His complex personality and his actions with the Death Note are often further explored. L also makes appearances, as his cat - and - mouse game with Light is a central part of the Death Note narrative.
These short stories can also show different moral and ethical dilemmas from new angles. Since the main manga was full of such discussions, the short stories continue this trend. They might show how different people react to the power of the Death Note, whether they are tempted by it or horrified, which further enriches the exploration of human nature in the context of this deadly notebook.
Oh, for sure! Death Note is considered a masterpiece in the manga world. Its unique concept and the way it unfolds make it a must-read. The characters' development and the moral dilemmas presented make it stand out from the crowd.
Well, it's not a straightforward yes or no. It could be canon if it aligns with the core concepts and plotlines of Death Note. But if it introduces elements that don't match the original story's framework, it might not be.