Japan continues to experience a decline in its population, yet there is a remarkable increase in the number of individuals learning Japanese worldwide. Recent data shows that the number of people learning Japanese as a foreign language has exploded from approximately 130,000 in 1979 to around 4 million in 2024, marking a thirtyfold increase. This surge can be significantly attributed to the global popularity of Japanese culture, particularly through manga and anime. Manga magazines like "Weekly Shonen Jump" have played a pivotal role in this trend, with series such as "One Piece," "Jujutsu Kaisen," "Chainsaw Man," and "Haikyuu!!" experiencing immense success in both print and animated adaptations.

Cultural phenomena such as the film adaptation of 'Demon Slayer: Mugen Train' set new records in box office earnings, making it the first Japanese film to surpass 100 billion yen globally, further adding to the allure of Japanese language learning. The motivations for learning Japanese often stem from a desire to enjoy these stories in their original form, without relying on translations. Many learners gain a deeper appreciation and understanding of the language through their engagement with popular media, which encourages a passionate approach to mastering the language.

This cultural engagement has led to enthusiastic and effective language acquisition among learners, who find motivation in their love for Japanese media. Experts note that learners driven by their interests often achieve higher competency levels, as they are eager to engage directly with the content they enjoy. The phenomenon demonstrates the powerful link between cultural interests and language learning, showcasing a reciprocal relationship where Japanese expands globally alongside its pop culture.