That’s probably because it’s more of a literary device. It’s said that Japanese novelist Natsume Soseki (1867-1916) coined the term, though there’s little evidence that actually verifies this. In any case, it’s apparently been around as a term since the 70s at the latest.I only learned what this phrase means in the last months, no manga I read before then ever explained the hidden meaning, most likely because even the translators didn't knew.
I've read manga for nearly 30 years.
Yes, I've read it in numerous manga through my life, but as it was always said when the moon was in the sky I simply thought it was a genuine comment, trying to make atmosphere or the character saying something cool, after knowing the meaning the context changes in several works.That’s probably because it’s more of a literary device. It’s said that Japanese novelist Natsume Soseki (1867-1916) coined the term, though there’s little evidence that actually verifies this. In any case, it’s apparently been around as a term since the 70s at the latest.