요괴 (yokai) are supernatural creatures from Japanese folklore, often depicted as spirits or monsters. They can take various forms, ranging from mischievous to malevolent, and are believed to inhabit natural elements, objects, or even human spaces. Each yokai has its own unique characteristics and stories, contributing to Japan's rich cultural heritage. These beings are often associated with specific traits or behaviors, such as kitsune (fox spirits) that can shape-shift or tengu (bird-like creatures) known for their martial skills. Yokai play a significant role in traditional Japanese art, literature, and festivals, reflecting the country's fascination with the mysterious and the unknown.