In a world without parallel worlds in manga, the imagination of the creators would be somewhat limited. There'd be fewer opportunities for mind-bending concepts and unexpected plot twists related to multiple realities.
It could show a desolate and nature-dominated landscape. Maybe with wild animals thriving and plants taking over cities.
In such a manga world, there'd likely be strict rules and no room for individual expression. Maybe a totalitarian regime controlling everything.
It would be a world lacking some unique and potentially groundbreaking stories. Many axed manga might have had great potential that was never fully realized.
In such a world, the yuri aspect could face intense censorship and societal barriers. The manga might focus on the characters' inner conflicts and their attempts to break free from the constraints.
In such a fictional world, ecosystems would collapse. Insects play crucial roles in decomposition and as a food source for other animals. The lack of them would have cascading effects on all life forms.
In such a novel, there'd likely be a sense of security and trust everywhere. People wouldn't have to worry about their possessions being stolen, and society might function more smoothly.
A world without Superman comics would lack that iconic symbol of justice and strength. The genre of superhero comics might not have developed in the same way, and fans would be deprived of his adventures and the values he represents.
In such a manga world, cats might have their own forms of government, jobs, and even wars. Their behavior and interactions could be both fascinating and unexpected.
It might be a desolate and imbalanced ecosystem. With no fish, many other species that depend on them for food or as part of the food chain could face serious survival challenges.
If there were no dirty jokes in manga, it might become more sanitized and conventional. It could lead to less diversity in humor and potentially make the medium less interesting for those who enjoy edgier or more adult-oriented comedy. But on the positive side, it could open up the genre to a wider and younger readership.