Onmyoji is a traditional Japanese practitioner of Onmyōdō, a system of divination and spiritual practices that combines elements of Buddhism, Shinto, and Taoism. Onmyoji were believed to have the ability to communicate with spirits, predict the future, and ward off evil. They often served in the imperial court, providing guidance on auspicious dates and rituals. In modern culture, Onmyoji has been popularized through various media, including video games, anime, and manga. One notable example is the mobile game Onmyoji, which features characters inspired by historical and mythical figures, allowing players to engage in strategic battles and explore a rich, fantastical world.