## 5 Discussions  
This section aims to discuss the findings of this study in conjunction with existing research, answer research questions, and explore prospects. By integrating quantitative and qualitative analyses, the findings demonstrate that the VR collaborative narrative system markedly surpasses the traditional web platform in key experiential dimensions. Quantitative data reveal substantial effects in user engagement, sense of presence, and social collaboration, all significant under FDR correction. These findings align with qualitative feedback, highlighting \"deep immersion\" and \"pleasure of non-verbal collaboration.\" Although quantitative metrics for creativity cultivation are not significant, interviews suggest VR can induce \"narrative logic breakthroughs,\" indicating current evaluation tools may not fully capture VR's unique innovative potential. User feedback suggests refining system design by enhancing achievement feedback, while maintaining low cognitive load and developing cross-media collaboration tools to mitigate the \"monotony\" issue noted by 75% of web users. These results confirm VR's advantages in fundamental experience dimensions and uncover its potential to inspire higher-order creativity, offering empirical support and methodological insights for designing immersive narrative systems. Overall, Co-relay serves as a pivotal platform for multi-user story co-creation scenarios, offering an immersive experience centered on participation, social interaction, and creative storytelling. **RQ1:**: _How can this Virtual Reality Card-based Interaction and Story Co-Creation Collaborative System be designed to enhance engagement and immersion in the user story creation experience?_  
The system employs a multi-dimensional immersive design and a dynamic card-based story combination mechanism to enhance user engagement. Users have the ability to personalize their character's appearance, transforming into an identity agent within the virtual environment. This customization is complemented by mission card-driven plot clues, such as hints to the murder weapon for a detective or symbolic puzzles for time travel scenarios, creating a closed loop of personalized character development, mission objectives, and narrative exploration. Within the virtual reality (VR) environment, users are exposed to multimodal stimuli, such as sound effects that respond to the character's movements, the visual effects of the arrangement of story cards, and visual feedback triggered by clue cards. Dynamic challenges, like unexpected plot twists presented through random event cards, sustain user attention. The integration of clue cards and the promotion of logical reasoning aim to deepen user engagement. The design incorporates a process of integrating clue cards and logical reasoning, facilitating immediate communication among multiple users. This includes combining story fragment cards, deliberating on combination methods and sequences, and receiving feedback on various endings from artificial intelligence-generated content (AIGC). These interactions allow users to experience a sense of accomplishment in puzzle-solving and creation, thereby enhancing their ongoing participation. Furthermore, the team collaboration mode encourages information sharing through interactive cards and assembling story fragments collectively. This mode enhances the immersive experience of collaborative exploration, enabling players to immerse themselves deeply in the narrative process. **RQ2:**: _How can this Virtual Reality Card-based Interaction and Story Co-Creation Collaborative System be designed to develop users' narrative skills and creativity?_  
The system enhances narrative capabilities using 'cross-media authoring tools' and an 'open narrative framework.' The story authoring module offers tools for editing storyboard plots, supports real-time collaborative plotting among multiple users, and enables the fusion of story fragments from the VR scene with textual clues to transcend the constraints of conventional textual narratives.