The Yin-Yang Realm's Deputy Judge

With the Book of Life and Death in my left hand and the Judge's Brush in my right, I command yin and yang and pass judgment on life and death. It all began when my grandfather died for no apparent reason. As I investigated one uncanny incident after another, I learned of his other identity. From then on, I became an acting judge of the underworld and embarked on a journey to find the true culprit who killed my grandfather.