It’s a style, but also a set of tropes and Japanese cultural references that would be difficult for even a similar culture, such as Korean, to emulate.
Even some recent Japanese-produced anime based on Korean manhwa, such as Solo Leveling and Viral Hit, weren’t popular in Japan, but I thought they are good to great.
Anime isn’t just animation.
It’s a style, but also a set of tropes and Japanese cultural references that would be difficult for even a similar culture, such as Korean, to emulate.
Even some recent Japanese-produced anime based on Korean manhwa, such as Solo Leveling and Viral Hit, weren’t popular in Japan, but I thought they are good to great.