-This lecture application is for those who have already finished Malkim's English essential expression pattern 500. -This is a pattern dialog lecture application made meticulously by Mr. Malkim in North America. -It is not a prank app that imitates studying English for a few dollars, but a full-fledged lecture app that replaces academy lectures. -Dialog simulation in which the expressions of Malkim's essential English expression pattern 500 are used in real situations -Equipped with dialogues t