One of them is the use of Asian characters in the text. Korean characters are not well defined and font sizes tend to be small.

其中一个问题就是，教材中用到亚洲文字是，例如，韩语文字显示不是很好，字体偏小。

youdao

Well not just that scene, but Korean cinema in general. There's an intensity in the characters not consistently seen in any other national cinema.

其实不止是这段戏，韩国电影总体上都是这样，人物有种不贯见于其他国家影片的强烈感情。

youdao

As Chinese characters were borrowed into Korean very early (BC108-AD372), the Chinese language has played an important role in modeling the phonetic system of Korean.

由于韩国人很早就借用中国汉字(BC 108 - AD372)，汉语对形成韩国的语音结构体系起了很大作用。

youdao

Considering that the entire futuristic Korean story is performed by its characters in plain English, and that we have no reason to believe that these later post-apocalyptic humans would even incorporate English into their own language, it feels less like a world-building method, and more like the writers being unnecessarily clever.

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