Journaling can potentially serve as an effective method for autistic adolescents to improve narrative skills. However, its text-centric nature and high executive functioning demands present barriers to practice. We present Autiverse, an AI-guided multimodal journaling app for tablets that scaffolds storytelling through conversational prompts and visual supports. Autiverse elicits key details through a stepwise dialogue with peer-like, customizable AI and composes them into an editable four-panel comic strip. Through a two-week deployment study with 10 autistic adolescent-parent dyads, we examine how Autiverse supports autistic adolescents to organize their daily experience and emotion. Autiverse scaffolded adolescents' coherent narratives, while enabling parents to learn additional details of their child's events and emotions. The customized AI peer created a comfortable space for sharing, fostering enjoyment and a strong sense of agency. We discuss implications for adaptive scaffolding across autism profiles, socio-emotionally appropriate AI peer design, and balancing autonomy with parental involvement.

翻译：日志记录可能成为自闭症青少年提升叙事能力的有效方法。然而，其以文本为中心的特性及对执行功能的高要求构成了实践障碍。本文介绍Autiverse——一款面向平板设备的AI引导多模态日志记录应用程序，通过对话式提示和视觉支持为叙事提供结构化支架。Autiverse通过可定制的类同伴AI进行渐进式对话以获取关键细节，并将其整合为可编辑的四格漫画。通过对10组自闭症青少年-家长组合开展为期两周的部署研究，我们探究了Autiverse如何支持自闭症青少年组织日常经历与情绪。该系统不仅帮助青少年构建连贯叙事，还使家长能了解子女事件与情绪的更多细节。定制化AI同伴创造了舒适的分享空间，促进了使用乐趣与强烈的自主感。我们进一步探讨了针对自闭症谱系的适应性支架设计、符合社会情感需求的AI同伴构建，以及自主性与家长参与间的平衡关系。