알리랑, the Korean words with an inside

Field notes

알리랑 groups familiar Korean words by shared Chinese characters and uses contrast, guessing, and accelerated listening rather than direct definitions as its stated learning sequence. The page gives concrete examples around 心, 熱, and 工夫, including the claim that one character can open ten words. It identifies itself as brain-hz.com’s fifth app and says preparation is underway for autumn 2026, so the present artifact is primarily a detailed pre-launch explanation rather than evidence of a released product.