See how two people fit together
All you need is a birth date. We combine Saju (Four Pillars) compatibility with zodiac compatibility and show it as a match rate.
How it works
Enter both birth dates. The birth time is optional.
Saju compatibility comes from day-master elements, elemental balance and the day branch; zodiac compatibility comes from the year branch.
The two scores are combined into a weighted match rate.
Nothing you enter is stored
Birth dates are used only while the result is being calculated and are never recorded. No account is needed. Nothing carried in a result link is sent to the server.
This is a traditional Saju reading offered for reference. It is not a scientific prediction or a verdict on any relationship.
Calculation Basis
What is the Basis for Calculation?
Inyeon-Link reveals all the rules it uses. You can check the items and their weights, the scores from the earthly branch relationship table, and the threshold values that distinguish between a strong day master and a weak day master — you can see where the numbers on the screen come from.
Service Basis
What Does Saju Compatibility Look At?
It clarifies four items and their respective weights, and explains why those four are chosen. It also addresses why calculations can be made even without knowing the birth time.
Relationship Table
Twelve Earthly Branches — Combination, Clash, Discord
This is a relationship table used for both day branch compatibility and zodiac compatibility. It fully discloses what each combination, clash, and discord means and their respective scores.
Zodiac
Why does zodiac compatibility consider the year branch?
The zodiac is the earthly branch of the year of birth. This explains why it is derived from the saju year pillar rather than the calendar year, and clarifies the significance of zodiac compatibility.
Ten Gods
Ten Gods and Spouse Position
We look at what each person's day stem is to each other through the Ten Gods. We explain why direct wealth and indirect wealth are read differently even though both are wealth.
About
About Inyeon-Link
We compare two birth charts in the Korean Saju tradition. Here is what we calculate, and what we refuse to claim.

