Direct Officer is a Ten Gods element that controls the Day Master and differs from it in Yin-Yang polarity. It represents orthodox authority, law, and (for female charts) the husband. As an auspicious god, having Direct Officer in one's chart indicates upright character, adherence to rules, suitability for governmental or managerial roles, and disciplined conduct throughout life—though it may also lead to excessive rigidity and lack of adaptability.
Based on the Day Master’s Heavenly Stem, identify the Heavenly Stem whose elemental phase controls the Day Master’s element but differs in Yin-Yang polarity. For example, for Jia Wood Day Master, Xin Metal is the Direct Officer; for Bing Fire Day Master, Gui Water is the Direct Officer.
For a Jia Wood Day Master with the Day Pillar 'Jia-Xin', the Xin Metal in the Day Branch is the Direct Officer; in a female chart, this signifies a righteous and responsible husband.