Best for: Anime/manga fans, tech career in Japan, literature and traditional culture
Best for: K-pop/K-drama fans, faster literacy path, growing business opportunities
Korean is faster to read and write (Hangul takes a day vs kanji takes years). Japanese offers more career depth and cultural content. Both are Category 4 languages (~2200 hours). Korean gives you earlier wins; Japanese gives you a bigger world to unlock.
Get a personalized learning plan for either — built around how YOUR brain learns.