Yeonsinnae Munko is a neighborhood bookstore in the underground area in front of Yeonsinnae Station, selling books, workbooks, and stationery together. Its range covers humanities and social science titles, magazines, children's books, exam prep books, reference books, and writing supplies, along with keyboards and wireless earbuds. Staff will order a book that is not in stock and notify the customer by text when it arrives in about a day, and there are chairs inside the store for reading. There is no elevator, so moving around is inconvenient.