Caps Lock
Korean is typed on the Dubeolsik (2-set) layout: consonants are on the left hand and vowels on the right. You type the letters (jamo) of each syllable in order and they combine into syllable blocks automatically.
Each word is shown with its syllables, and the hint shows the next jamo and the finger to use. Double consonants such as ㄲ and ㅆ are typed with Shift.
Start with the lessons from the home row, then take daily tests to build speed.