Rat and Dog sit in the other category. 子 (Zi) and 戌 (Xu) appear on none of the classical lists of trines, harmonies, clashes, harms, or punishments. Tradition reads them through the five elements, where the Dog’s earth meets the Rat’s water.
How tradition reads this pairing
Xu, the Dog’s 地支 (Earthly Branch, dizhi), carries earth. Zi carries water. In the 五行 (Wu Xing, five phases) control cycle, earth controls water, like a dam holding a river.
As a temperament image, the Dog brings fairness and responsibility, and the Rat brings flexibility and quick thinking. The Dog is commonly described as loyal, fair, and responsible, though anxious. The Rat is described as quick-witted and good at seizing opportunities, though prone to worry. The Dog may ask the Rat to be more consistent; the Rat may ask the Dog to be less rigid.
Strengths to build on
The Dog’s loyalty is a deep resource. Once a Dog commits, it tends to stay in the Rat’s corner through hard seasons.
The Rat’s resourcefulness helps the Dog in turn. When the Dog worries about fairness or a problem at work, the Rat often finds a practical fix.
Both take responsibilities seriously in their own way. Shared responsibilities, such as caring for parents or children, can draw them closer.
Friction points and how people handle them
Fairness and tactics. The Dog is described as fair-minded. A Rat who uses clever shortcuts may unsettle the Dog, even when nothing is wrong. Explaining the reasoning openly builds trust.
Worry. Both signs are described as prone to anxiety or overthinking. The Rat’s busy schedule can feed that. Regular check-ins and kept promises calm it.
Control. Earth over water can turn into the Dog setting rules. The Rat may respond by slipping around them. Writing rules together beats enforcing them on each other.
In friendship, work, and romance
Friendship
As friends they are dependable and fun. The Dog stands up for the Rat; the Rat brings the Dog into new circles.
Work
At work the Dog guards standards and ethics, and the Rat finds openings and saves time. Clear agreements prevent misunderstandings.
Romance
Romance grows steadily on trust. Small promises kept matter more than big romantic moments.
Notes for 2027
The 2027 未 (Wei) year is mixed for both signs in the 太岁 (Tai Sui, the year’s guardian star in folk belief) tradition. The Dog forms a break relationship with Wei and sits in the Chou-Xu-Wei punishment group. The Rat forms a harm pair. Tradition suggests careful communication. See the Dog 2027 forecast.
More pages
See the Rat profile and the Dog profile, or run any pair through the zodiac compatibility calculator. This is a traditional lens for talking things through, not a ruling on your relationship.