In fact, we have already experienced metaverse and XR technologies through various digital services. A case in point is the metaverse concert. Live concerts migrated to virtual stages in the metaverse as large-scale concerts became impossible due to the COVID-19 pandemic. In 2020, 12.3 million simultaneous users flocked to Travis Scott’s live concert held on the virtual stage of a popular metaverse game "Fortnite." The phenomenon continued as top musicians, Ariana Grande and BTS, also followed suit. In March 2022, a Metaverse Fashion Week was heldⅲ on the virtual reality platform "Decentral Land," featuring fashion brands like Dolce & Gabbana.

So far, the metaverse has been focused on specific areas such as games and entertainment. However, as we see more real and virtual spaces connecting through various devices, the metaverse and XR will expand into more diverse areas. On May 2022, Google revealed a prototype of AR glasses that can listen to a live conversation and virtually display the translated speech in real time. Also, Meta introduced a Metaverse-user scenario that is expanded into personal fitness, social networking and business, at its Connect 2021 conference. Meanwhile, consumer research shows that 64% of U.S. consumers already feel comfortable using emerging technologies such as VR, AR, robotics, and artificial intelligence in preventive care and health monitoringⅳ. The metaverse ecosystem just began to bloom, but will soon expand and deepen into our lives.