During COVID-19, people are often exposed to acrylic. The oval in front of the acrylic symbolizes the window of the plane, indicating that it is impossible to go abroad during the epidemic. The metal wires on the outside symbolize the house and the windows. The brooch is placed in front of the heart, indicating that people cannot go out because of COVID-19 and maintain social distance, so their mental health is affected. This is designed to make people aware of the impact COVID-19 has had on people's mental health.