## 5 Discussion  
The present study examined the differential effects of MOCCA's features on parasocial interaction and trust, which subsequently influenced users' intention to continue using MOCCA. The results indicated that three of MOCCA's key features: perceived anthropomorphism, agency, and risk, serve as stimuli within the SOR framework, each playing a distinct role in shaping human-social robot relationships through parasocial interaction and trust. These emotional and cognitive experiences significantly contribute to users' intentions to continue using the social robot. Specifically, MOCCA's perceived anthropomorphism, its intimacy feature, showed the strongest positive influence on both parasocial interaction and trust [38; 77; 78]. Users who perceive MOCCA as an intimate partner are more likely to interact emotionally, increasing trust and willingness to continue using the robot. As intimacy grows, users view MOCCA as more relatable, capable of understanding their needs and emotions, and responsive to their personal context. Since trust is rooted in emotional connections, intimacy is crucial in forming these bonds [72]. As MOCCA demonstrates human-like understanding and empathy, users develop a psychological connection, even though the interaction is with a machine. While intimacy significantly enhances parasocial interaction and trust, MOCCA's perceived risk, regarding information privacy, has a significant negative influence on both parasocial interaction and trust [12; 56]. This negative impact results in a lower intention among users to continue using MOCCA. When users believe that their personal information is under threat or could be misused, they no longer trust the social robot [85]. Since trust is foundational to forming strong emotional bonds, concerns about data security can hinder the development of an emotional connection with MOCCA. Privacy concerns make users less likely to view MOCCA as a trustworthy partner; instead, they may view it as a tool  
Figure 4: Hypothesis testing results. that potentially compromises their privacy. Users are less willing to share personal details with MOCCA, hindering the development of parasocial interaction and weakening the bond that would promote continued use [87]. The findings of this study provide valuable insights into the role of agency in shaping parasocial interaction and trust. Morality plays a crucial role in developing human-like qualities in social robots [50]. When users perceive MOCCA as acting with moral responsibility, they are more likely to trust it. This perception helps bridge the gap between human and robot engagement, developing emotional connections and increasing trust in MOCCA's actions. Morality enhances the user's sense of emotional safety, as they believe the robot will act following social and ethical norms. This sense of security strengthens emotional involvement with the robot, making users feel their emotional investment is worthwhile [69]. It creates an illusion of reciprocity, which contributes to the development of trust. As trust in MOCCA grows, users are more likely to view it as a reliable and authentic social partner, strengthening their willingness to continue using the robot. In contrast to the positive effects of morality, dependency demonstrated a more complex relationship with parasocial interaction and trust. Specifically, dependency significantly reduces parasocial interaction but does not have a significant effect on trust. Parasocial relationships are often built on the illusion of reciprocity [38]. When dependency is high, the robot's actions may be perceived as less spontaneous or genuine, as they are simply responses dictated by pre-programmed instructions rather than independent decisions [83]. Users may perceive MOCCA as overly reliant on rigid programming, which could reduce emotional involvement and hinder the development of parasocial interaction.