Tokisada, a teacher of Yi Studies in Tokisada, is good at odd geomantic omen, odd geomantic omen prediction, Wei Zi's game of numbers, Neo-Confucianism, geomantic omen and eight-character numerology. He studied astrological feng shui with Xu Jinghai, the chief feng shui master of the Ministry of Housing and Urban-Rural Development.
Teacher Tokisada studied Taoism and Qimen Feng Shui from Master Huangshan. Based on the traditional strengths, he integrated modern and various schools, developed a variety of ways to spread the Yijing culture, and summed up a set of teaching models that are easy to learn and use.