The Splatoon manga is indeed canon. It contributes to the broader narrative and world-building of Splatoon. Any variations from other elements are usually intentional and part of the creative process to expand the story.
The story length of Splatoon 3 can vary depending on how quickly you progress and how much you explore. Generally, it can take several hours to complete the main story missions.
The length of the Splatoon 3 story can vary depending on how quickly you progress and your playstyle. But on average, it takes several hours to complete the main storyline.
I don't have the specific number off the top of my head. Maybe you can ask manga experts or do some research on manga review platforms to get a clear answer.
The Splatoon 2 story isn't overly long. Generally, if you focus and play through without too many distractions, you could finish it in around 5-8 hours. However, if you take your time and explore all the side elements, it could take longer.
Just start with an interesting idea for your story. Maybe think about unique characters or a cool battle scene. Then, build the plot around that idea. Make the characters come alive with their own personalities and motives.