Learn about molecular bonding through an engaging lecture from Professor Akira Harada of Osaka University's Institute of Scientific and Industrial Research, presented as part of the Junior Doctor Training Program (Mebae Juku). Explore how molecules connect through their structural features in this accessible presentation designed for middle school students but valuable for all audiences interested in chemistry. The lecture, delivered through a collaboration between Osaka University, Kyoto University, Kansai University, and the NPO Einstein Intellectual Human Resources Network, combines fundamental concepts with cutting-edge research perspectives while maintaining clear explanations of complex molecular structures.