# A Study on the User Experience to Improve Immersion as a Digital Human in Lifestyle Content
## 1 Introduction  
Metaverse is a new word combining'meta', meaning 'transcendence', and 'universe', meaning 'world'. In futurism and science fiction, the metaverse is a hypothetical iteration of the Internet as a single, universal, and immersive virtual world that is facilitated by the use of virtual reality (VR) and augmented reality (AR) headsets. In colloquial use, a metaverse is a network of 3D virtual worlds focused on social connection [1; 2; 3]. Although a clear definition of the concept of the metaverse has not yet been established, it refers to an environment that interacts with the virtual world, and has the characteristics of reducing people's rejection of the virtual world and increasing their sense of immersion [2]. Gartner [4], an American information technology research and advisory firm, has published trends that will continue to drive the use of metaverse technology over the next three to five years. It is a type of AI-based representation that can interpret speech, gestures, and images, and can generate its own language, tone, and body language. This presents opportunities for a new digital ecosystem, supported by technologies that bring individuals and organizations together to innovate in new ways and support interactions. The digital human's facial expressions and facial muscle movements are constructed based on data analyzed from hundreds of human expressions, and emotions are implemented using sophisticated artificial intelligence technology. With the recent development of eye recognition, emotion recognition, voice recognition, and artificial intelligence technologies, digital humans with more natural and realistic facial expressions have emerged. However, unfamiliar elements still occur in communicating and interacting with humans, and the scope is limited to the development of visual elements. If virtual reality is applied to reality, the method of making the conversation with the machine more intimate begins with a deep understanding of the nature of human beings and leads to judging the recognition of human-like emotions in order to confirm identity. Therefore, digital human research based on more in-depth human emotional research is needed to provide an optimal user experience. In general, the current digital human is expressed in a human-like form, which increases the realism of the digital human to increase the co-presence and the social presence that interacts with the real human being, in order to maximize user satisfaction and utility. However, when implemented similarly to a real person, an uncanny valley may occur. The uncanny valley was a theory proposed by [PERSON] in 1970. The more an object resembles a human, the more favorable the emotional response. However, when the resemblance reaches a certain level, a strong rejection is felt [5]. Therefore, this study does not aim to harmonize humans and machines (in the form of a digital human), but aims to reduce the rejection between humans and machines. As technology advances, it is essential to understand the fundamental way of thinking, behavior, and emotions of humans. When people maximize their experience and receive the optimal experience they want, the value of the product and service is also maximized [5]. This is not a simple superficial understanding, but a deep psychological state, and an inner conceptual study of the human being is lacking. Here, we have studied ways to provide a new user experience based on understanding, not only of human-like shapes and movements but also human emotions. It is necessary to look at the definition of a digital human, the stages of development, and the technology for creating a digital human. This study aims to understand the development methods through new user experiences in the design field, as well as the technical part regarding how the digital human is currently affecting our daily life through human empathy, and in what direction it should develop in the future.