Some mangas are like that, you should also look like manhwa authors from occupied zone of Korea portray Japan and China. Japan in them is usually completely insignificant backwater full of small, insecure and superstitious savages. China is either vast human hive or “here be monsters” Mordor, but also comically weak and owned by superior Koreans every time. DPRK is at best completely ignored.
Some mangas are like that, you should also look like manhwa authors from occupied zone of Korea portray Japan and China. Japan in them is usually completely insignificant backwater full of small, insecure and superstitious savages. China is either vast human hive or “here be monsters” Mordor, but also comically weak and owned by superior Koreans every time. DPRK is at best completely ignored.