We present RPO-PDT: a retrieval-grounded, role-play-based dialogue system for adaptive student support in higher education. RPO-PDT is: (1) able to provide institution-specific Personal Development Tutor (PDT) guidance using structured knowledge sources; (2) constrained by explicit persona, boundary, confidentiality, and safety policies; and (3) designed around a reverse-roleplay loop where unresolved interactions are replayed from the student perspective, enabling alternative tutor strategies to be generated and stored as reusable strategy memory. RPO-PDT supports both text-based and Furhat-based embodied interaction for demonstrating grounded, safe, and adaptive student-support dialogue.

翻译：我们提出RPO-PDT：一个面向高等教育中学生适应性支持的检索增强型、基于角色扮演的对话系统。RPO-PDT具有以下特点：（1）能够利用结构化知识源提供机构特定的个人发展导师（PDT）指导；（2）受显性人格设定、边界、保密性和安全策略约束；（3）围绕反向角色扮演循环设计，通过从学生视角重放未解决的交互，生成可替代的导师策略并存储为可复用的策略记忆。RPO-PDT支持基于文本和基于Furhat的具身交互，用于演示具有根基性、安全性和适应性的学生支持对话。