Does the teacher of Yin and Yang, Harumi Abe, really exist?

The character Abe Changhao in the Japanese anime Master of Yin and Yang is a virtual character.

Abe Harumi is a famous teacher of Yin and Yang in ancient Japan and a real and active figure in history.

Yin and Yang teachers, also known as soothsayers or illusionists, originated in China. Not only do they know how to look at the stars and face each other, but they can also measure directions, know disasters, draw spells and perform illusions. People also realize that invisible forces, such as fate, soul and ghost, have the ability to dominate these things.