Dear
@kyunsan For female sons are hurting officer. From elemental point of view. Mother gives birth to son or daughter. For example earth as mother, metal as children for the mother.
How about the father? Father is 7K or DO of the mother. In this case wood, right? Now how about father and children. Coz father can not give birth, thus have to rely on mother to give birth. Thus the children element of children for father cant be fire.
From the father stand point children are DO or 7K
From mother stand point children are EG and HO