The ability to understand all languages in a given world a main character is transported to is a standard trope, but I don't think it's been utilized correctly, to it's maximum, or even acknowledged for how utterly broken such as skill would be. I've always been somewhat vocal about my dislike for tropes in Isekai not being needed or living up to their fullest potential but I truly do think this is a shining example of that. Thinking about it from our worlds perspective how many people know a second language while not being a dual citizen of some kind? Knowing more than one or two languages is laughably rare and useful skill and the Isekai genre treat it like a fodder skill. Imagine being able to read dead languages and not thinking it was a useful ability for uncovering history. It has countless uses like negotiating with other races or communities, reading encoded messages, and acting as a translator for perhaps even royalty. But no isekai protagonist don't care about it because they're a bunch of murder hobos (who happen to always pick an adventurer profession) who would die from exhaustion from actually communicating with an enemy before killing them. Protagonist could go into a new world with that skill alone and never gain a new skill and be set for life, but protagonists in their arrogance think of it as a basic skill and take it for granted.
You sound kind of jealous to me~ lol
Nobody cares about that. Most isekais are wish-fulfillment and escapism. Whatever the author wishes to have in real life but doesn’t have it, he can get it in fiction. Same goes for the readers. Our imagination is really powerful, so when reading fiction, it’s like we live another life for a moment.
On a more serious note, though. I agree with you, yes, the language comprehension skill is OP as fuck. But that’s coming from the perspective of the people from this world. This world of ours relies more on knowledge and intelligence than strength and magic—which doesn’t quite exist, as far as most people know.
It’s a broken skill in real life, in our world. If I ever receive such a skill in this world, I’ll dance in joy. I can talk to anyone all around the world in their native language. I can read or watch or listen to any media from every single country. Getting a job is super easy if you know every single language. Companies will flock over you.
But that’s if it’s in our world.
The world in the isekai novel is vastly different. It’s a fantasy world full of dangers. Some even have a monster or an individual that could kill you with just a breath or a tap of a finger. It’s ridiculously dangerous.
So think about it, if you were to get isekaied into such a world, would you still care about language comprehension? If you suddenly get ambushed by a band of bandits during your journey, would the language comprehension help you out of that? If a freakin dragon comes to destroy the village you live in, would the language comprehension save your life?
See what I mean? Language comprehension is precious, if it’s used in our world. But in a fantasy world, it doesn’t do much shit. So why does the MC have to care about that?