Nope. 'All of Us Are Dead' is purely fictional. The plot, characters, and situations are made up to provide an exciting and captivating viewing experience, not to represent actual happenings.
Yes, 'All of Us Are Dead' is based on a webtoon, which can be considered as a form of real story in the sense that it was created by an author. However, it is a fictional work within the realm of the webtoon and then adapted for the screen.
Nope. 'All of Us Are Dead' is a work of fiction. It has elements like the spread of a zombie virus in a school, students and teachers trying to survive, and all the drama and horror that comes with it. However, these are all made - up scenarios. There's no real - life account of such a zombie outbreak in a school or anywhere else that the show is based on.
In 'All of Us Are Dead', the love story is often about the relationships that form under extreme circumstances. For example, some characters might develop feelings for each other while fighting for survival against the zombies. Their love is tested by the constant threat around them and the need to protect not only each other but also their friends.
One idea could be exploring the backstories of the minor characters more in - depth. For example, we could learn about the life of a random student who was bit early on. Another could be a different take on how the virus spread, like if it was intentionally released by a secret organization for some dark purpose. Or perhaps a fanfiction where the survivors find an unexpected safe haven that has its own set of rules and mysteries.