Simplified schematic diagram of the transformation from the corona (blue area) to the wind (gray area) during the QPO phases. We show the change in a region of gas with a hot electron above the disk, referred to as the corona, in response to QPO phases. The diagram shows that the variation in the corona is anticorrelated with the ejection of ionized material through the disk wind during different QPO phases. The top and bottom panels show the situations of the QPO peak at 0.5−0.6 phase and the QPO trough at 0.0−0.1 phase. The dashed red and blue lines indicate the corona size at the highest and lowest points of the QPO phase, respectively.