you got very important point about japanese,
yes japanese is really simple, very simple if it is seen phonetically. it comes mainly from the japanese writing system Kana(Hirakana and Gatakana), it is written only horizontally, I mean, you write it from left to right only, as compared with the complex writing system like Chinese and Korean.
Korean has more complex composition and structure of writing, that is, Korean is written both horizontally and vertically, and that makes the Korean-phonetic more difficult. Other than complicated mophological structure, there is also Diphtongs or Diphtongisations, mostly vowel Diphtongisations, which makes Korean not easier for Western-foreingers to learn.
yes japanese is really simple, very simple if it is seen phonetically. it comes mainly from the japanese writing system Kana(Hirakana and Gatakana), it is written only horizontally, I mean, you write it from left to right only, as compared with the complex writing system like Chinese and Korean.
Korean has more complex composition and structure of writing, that is, Korean is written both horizontally and vertically, and that makes the Korean-phonetic more difficult. Other than complicated mophological structure, there is also Diphtongs or Diphtongisations, mostly vowel Diphtongisations, which makes Korean not easier for Western-foreingers to learn.