Kaoru Sumi, a leading expert in human-agent interaction and affective technologies, shares insights drawn from decades of interdisciplinary research and practice. After earning her Ph.D. from the University of Tokyo, she held research positions at NICT (National Institute of Information and Communications Technology), Osaka University, and Hitotsubashi University, contributing to a range of innovative projects. She is currently a professor at Future University Hakodate in Japan.A senior member of IEEE and ACM and an active contributor to international conferences and journals, Professor Sumi is dedicated to bridging research and real-world application. Her mission is to design emotionally intelligent systems that support inclusive and effective learning on a global scale.

• Preface. SECTION 1: AFFECTIVE LEARNING. 1. Intelligent Tutoring System using Affective Interaction. 2. The Impact of Avatars Used in Online Education on Learning Effectiveness. 3. Emotion-Driven Story Generation for Game-Based Learning in Virtual Environments. SECTION 2: AFFECTIVE INTERACTION. 4. Pet-type Artifact That Promotes Behavior Change through Emotional Expression. 5. Affective Learning in Human-Robot Interaction. 6. Observation of Students’ Behavior for Affective Learning. 7. Cross-Cultural Perspectives on Persuasive Affective Learning through Information Media. Section 3: SERIOUS GAMES. 8. Serious Games for Teaching Social Media Etiquette Through Simulated Experience. 9. Learning English Through Etymology and Animation: A New Approach for Elementary Students. 10. Experiencing the Role of a Bully: A Serious Game for Anti-Bullying Education. 11. Motivating Athletic Performance: A Throwing Training System with Immersive Feedback. 12. Enhancing Spatial Cognition in Sports Through Virtual Reality Training. 13. Game with a Purpose: Building a Visual Effect Dictionary Through Engaging Gameplay. SECTION 4: XR AND BEYOND: THE FUTURE OF LEARNING. 14. Beyond Flatland: Mixed Reality Geometry for Immersive STEM Learning. 15. Mixed Reality and Generative Art in Mathematics and Programming Education. 16. Immersive Geography Education Through Digital Twins and Virtual Reality. Conclusion.

Kaoru Sumi, a leading expert in human-agent interaction and affective technologies, shares insights drawn from decades of interdisciplinary research and practice. After earning her Ph.D. from the University of Tokyo, she held research positions at NICT (National Institute of Information and Communications Technology), Osaka University, and Hitotsubashi University, contributing to a range of innovative projects. She is currently a professor at Future University Hakodate in Japan.A senior member of IEEE and ACM and an active contributor to international conferences and journals, Professor Sumi is dedicated to bridging research and real-world application. Her mission is to design emotionally intelligent systems that support inclusive and effective learning on a global scale.

• Preface. SECTION 1: AFFECTIVE LEARNING. 1. Intelligent Tutoring System using Affective Interaction. 2. The Impact of Avatars Used in Online Education on Learning Effectiveness. 3. Emotion-Driven Story Generation for Game-Based Learning in Virtual Environments. SECTION 2: AFFECTIVE INTERACTION. 4. Pet-type Artifact That Promotes Behavior Change through Emotional Expression. 5. Affective Learning in Human-Robot Interaction. 6. Observation of Students’ Behavior for Affective Learning. 7. Cross-Cultural Perspectives on Persuasive Affective Learning through Information Media. Section 3: SERIOUS GAMES. 8. Serious Games for Teaching Social Media Etiquette Through Simulated Experience. 9. Learning English Through Etymology and Animation: A New Approach for Elementary Students. 10. Experiencing the Role of a Bully: A Serious Game for Anti-Bullying Education. 11. Motivating Athletic Performance: A Throwing Training System with Immersive Feedback. 12. Enhancing Spatial Cognition in Sports Through Virtual Reality Training. 13. Game with a Purpose: Building a Visual Effect Dictionary Through Engaging Gameplay. SECTION 4: XR AND BEYOND: THE FUTURE OF LEARNING. 14. Beyond Flatland: Mixed Reality Geometry for Immersive STEM Learning. 15. Mixed Reality and Generative Art in Mathematics and Programming Education. 16. Immersive Geography Education Through Digital Twins and Virtual Reality. Conclusion.

Kaoru Sumi, a leading expert in human-agent interaction and affective technologies, shares insights drawn from decades of interdisciplinary research and practice. After earning her Ph.D. from the University of Tokyo, she held research positions at NICT (National Institute of Information and Communications Technology), Osaka University, and Hitotsubashi University, contributing to a range of innovative projects. She is currently a professor at Future University Hakodate in Japan.A senior member of IEEE and ACM and an active contributor to international conferences and journals, Professor Sumi is dedicated to bridging research and real-world application. Her mission is to design emotionally intelligent systems that support inclusive and effective learning on a global scale.

• Preface. SECTION 1: AFFECTIVE LEARNING. 1. Intelligent Tutoring System using Affective Interaction. 2. The Impact of Avatars Used in Online Education on Learning Effectiveness. 3. Emotion-Driven Story Generation for Game-Based Learning in Virtual Environments. SECTION 2: AFFECTIVE INTERACTION. 4. Pet-type Artifact That Promotes Behavior Change through Emotional Expression. 5. Affective Learning in Human-Robot Interaction. 6. Observation of Students’ Behavior for Affective Learning. 7. Cross-Cultural Perspectives on Persuasive Affective Learning through Information Media. Section 3: SERIOUS GAMES. 8. Serious Games for Teaching Social Media Etiquette Through Simulated Experience. 9. Learning English Through Etymology and Animation: A New Approach for Elementary Students. 10. Experiencing the Role of a Bully: A Serious Game for Anti-Bullying Education. 11. Motivating Athletic Performance: A Throwing Training System with Immersive Feedback. 12. Enhancing Spatial Cognition in Sports Through Virtual Reality Training. 13. Game with a Purpose: Building a Visual Effect Dictionary Through Engaging Gameplay. SECTION 4: XR AND BEYOND: THE FUTURE OF LEARNING. 14. Beyond Flatland: Mixed Reality Geometry for Immersive STEM Learning. 15. Mixed Reality and Generative Art in Mathematics and Programming Education. 16. Immersive Geography Education Through Digital Twins and Virtual Reality. Conclusion.