Hello I probably sound stupid, but how do they communicate? Are japanese and korean similar enough? Like on DFM there's Koreans and Japanese on the team
i've been learning japanese as a korean-american (native fluency in both) for 4 years-ish, and there's a lot of borrowed words in respective cultures which made the transition easy.
I also have a background in hanja/hanzi because I took Chinese for about a year when I was younger so I also think this helped with kanji. hiragana and katakana only took around 2-3 days to fully master.