ding gui jia gui
si hai zi si female
Based on Mangpai, this is a Gui DM that is connected with Water sources, please note the blue color. Such Gui DM does not like to meet 絕 Jue Qi phases, because this Qi phase stops the water flow. And this DM meets this Qi phase at both Hour and Year. This affects health and longevity unfavorably.
The other thing is that Hai as a Water source is hurt by the clash with Si. Zi is also another Water source, and it would be more unfavorable for longevity when both Water sources are hurt.