## 1 Introduction  
In recent years, multi-user collaborative cross-media narrative and collaboration platforms have gained popularity. These platforms allow multiple users to co-create and share stories. [PERSON] et al. (2024) found that these platforms improve users' narrative skills through collaborative efforts with interactive feedback [1]. They observed that engaging with social content, such as collaborative feedback in narratives, activates the ventral-lateral anterior temporal lobe of the brain, facilitating deep cognitive processing [1]. [PERSON] (2021) discussed [PERSON]'s (1962) sociocultural theory, highlighting the crucial role of interactive feedback in developing narrative skills [2]. Additionally, [PERSON] and [PERSON]'s study proposed that storytelling in collaborative settings, utilizing the Collaborative Story Craft intervention tool, enhances narrative skills by fostering communication, story production, and understanding to facilitate dialog among participants for sense-making and collective story construction [3]. Research by [PERSON] et al. (2023) highlights the enhanced immersion, presence, agency, usability, and user experience (UX) when virtual reality is employed to convey migration stories [4]. [PERSON] (2014) demonstrated that collaborative story co-creation significantly boosts users' emotional and cognitive engagement [5]. The \"flow theory\" suggests that deep engagement in a creative task leads to a focused and enjoyable state, improving creation quality and emotional involvement [5]. Despite advancements in cross-media narrative and collaboration platforms, significant research and practical gaps persist. These platforms initially engage users but struggle to sustain long-term interest and engagement due to limited continuity, user immersion interactions, and the failure to achieve a sustained'state of mind flow [5].' The decline in user interest is attributed partly to inadequate interaction mechanisms and varying levels of immersion offered by platforms. Current design practices also fall short in maintaining user engagement by not dynamically responding to user preferences, resulting in standardized experiences and decreased satisfaction. Furthermore, personalization systems, crucial for enhancing user experiences, are underdeveloped, with a predominant focus on functional and technical aspects at the expense of emotional and social connections, potentially alienating users. This study examines the underexplored impact of collaborative storytelling, virtual reality, and interaction design on enhancing engagement, immersion, creativity, and fulfilling emotional and social needs. It challenges the existing framework of interactive story design, which primarily emphasizes narrative comprehension and empathy. Therefore, this study proposes a new interactive immersive cross-media narrative and collaborative co-creation story design to increase users' engagement, immersion, foster creativity and fulfill emotional and social needs. In addition, we aim to answer the following key research questions:  
**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?_
**RQ2:**: _How can this Virtual Reality Card-based Interaction and Story Co-Creation Collaborative System be designed to develop users' narrative skills and creativity?_
**RQ 3:**: _How can this Virtual Reality Card-based Interaction and Story Co-Creation Collaborative System be designed to satisfy emotional and social interactions?_  
The study commences with a comprehensive review of current research on cross-media storytelling co-creation design, highlighting deficiencies in maintaining user engagement and emotional resonance, referred to as the'state of mind flow.'