Asian markets are set to open lower following Wall Street's worst session of the year, driven by disappointing U.S. economic data that raised concerns about persistent inflation and slower growth. The ASX 200 index fell by 0.9%, the Nikkei 225 dropped by 1.5%, and the KOSPI declined by 0.7%. Investors are particularly cautious ahead of Nvidia's upcoming earnings report, scheduled for Wednesday, which is seen as crucial for the market's direction. The Nasdaq and S&P 500 also experienced declines as apprehensions grew regarding demand for AI technology. The absence of Japanese market participants due to the Emperor's Birthday holiday has further contributed to the thin trading conditions.