Before starting to invest, the author researched stocks with the longest dividend payment history. The author calculated an approximate range of dividends, expecting to receive around 30,000 to 50,000 won monthly per 10 million won investment. In August, they aimed at 1 million won in monthly dividends after tax. Despite the volatility, they preferred the ETF options due to their resilience to price drops. Their goal of a monthly dividend of 1 million won was easily achieved.