A controversy broke out online after the story of a tenant being contacted by the landlord to refrain from using the air conditioner was revealed, even though the tenant pays the electricity bill directly. Recently, a post was posted on an online community with the title, ‘I turned the air conditioner on all the time, but I received a text message like this.’ Mr. A, who said he was a beginner living alone in a villa in southern Gyeonggi Province, said, “I use an inverter-type air conditioner because I heard that leaving it on continuously costs less electricity bills than turning it on and off. According to the text message released by Mr. A, the landlord first sent a message saying, “On rainy and cool days like today, please turn off the air conditioner and open the window to save power.” To this, Mr. A replied, “If you open the window, too many insects such as flies come in, perhaps because it is on the second floor.” However, the landlord sent another text message a few days later. The text said, "The wind is blowing coolly, so open the window and turn off the air conditioner. What are you going to do in the upcoming hot weather? What are you going to do if the sensor breaks down? Room 201 only.