Background Clinical ethics consultation (CEC) is not sufficiently widespread in Japan. A possible reason is that a practical training system for CEC has not been established. Hence, we have developed “immersive role-play (IR)” as a practical training program that applies a new theatrical technique, immersive theater, to role-play learning. Its characteristics include high fidelity in the use of a studio and actors and dynamic realism in the progression of the scenario to immerse learners in role-play learning. Methods We offered an (...) intensive course on CEC for healthcare professionals from 2016 to 2019, with IR as part of the course curriculum. A questionnaire survey was administered to the participants regarding the educational effectiveness of IR. The questionnaire was anonymous, and participants responded on a 4-point Likert scale regarding their satisfaction with IR and their perception of its learning effects. An open-ended section at the end of the questionnaire asked about the effectiveness and areas for improvement of IR. Results The questionnaire survey showed good results in all categories: usefulness, satisfaction, understanding, and interest. In the questions that compared the learning to traditional role-play learning, the participants gave significantly high ratings, specifically for “realism,“ “seriousness,“ “understanding the importance of communication skills,“ and “understanding the diversity of the narratives.“ In the free-text responses, the most frequent response was that they learned a lot about the practical procedures for participation. Conclusion IR is sufficiently effective as a practical educational program, but not for everyone. It is suitable for those who are or will soon work as consultants. Conversely, beginners and intermediates who have not fully mastered the CEC theory and skills will need a stage-specific educational program separate from the IR. (shrink)