Japan is experiencing a resurgence in the popularity of characters from the Heisei era. The sudden boom has left many wondering why these characters are making such a dynamic comeback. This nostalgia wave includes characters from different fields, including animation, video games, and comic books, and it is gaining widespread attention across various age groups in Japan. The precise cause of this trend is undefined, contributing to intrigue and debate.

In Japan, many have a deep fondness for properties from the "Heisei" era (1989-2019) and view them as cultural cornerstones. The resurgence trend encapsulates the country's unique appreciation for nostalgia and the powerful influence of pop culture. Within that context, the retro character boom is seen as a celebration of a shared cultural past and has sparked widespread discussions about the enduring legacy of Heisei-era media.

In the US or EU, retro and nostalgia trends are common and often major selling points in entertainment. Likewise, the comeback of retro characters in Japan is similar to how franchises like Star Wars, Marvel Superheroes, or retro video game characters get renewed interest. The cultural roots and contexts may vary, but overall, it shows audiences worldwide enjoy revisiting familiar characters from their past.