Yes and no.
The story per se is fictional. Some of the elements that compose it have some real background; others are purposefuly incorporated as symbols for universal events or events that others may find relatable.
Bullying may be a universal theme no culture is exempt from, every individual may experience it differently; but bullying can also be institutionalized. A whole government may bully a whole population and a whole bunch of other countries may just sit and look with the same disregard or excitement kids contemplate a fight on the playground.
Ahhh okay. I get it @hlezama.