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K-pop Idol Saju Compatibility

Pick your favorite K-pop idol and enter your birthday to see your Korean Saju (Four Pillars) compatibility — based on each Day Master and the Five-Element relationship between you.

Your birthday

Pick an idol

NewJeans
LE SSERAFIM
IVE
aespa
(G)I-DLE
ITZY
TWICE
NMIXX
Stray Kids
RIIZE
SEVENTEEN
ENHYPEN
TXT
ATEEZ
ZEROBASEONE
BTS
BLACKPINK

How K-pop Saju compatibility works

Korean Saju reads your birth date as Four Pillars, and the core of any compatibility (Gunghap) reading is the Day Master — the Heavenly Stem of the birth day, which represents the self. We take your Day Master and your idol’s, compare them through the Five Elements (Wood, Fire, Earth, Metal, Water), and check the Heavenly-Stem attraction and Earthly-Branch harmony or clash of your birth days. Idol birth dates are public. This is a fun, quick Day-Pillar reading — a full chart looks at all four pillars.

Frequently Asked Questions

What is Saju (Four Pillars)?

Saju is East Asian astrology that reads your birth year, month, day, and hour as eight characters (Heavenly Stems and Earthly Branches), revealing personality, fortune, wealth, and relationships through the flow of the Five Elements (Wood, Fire, Earth, Metal, Water).

Is CatchSay’s Saju reading free?

Yes. Enter your birth date and time to see your Eight Characters and a core reading for free. Deeper interpretation is available after signing up.

How accurate is the AI Saju reading?

The Four Pillars calculation (pillars, Five Elements, Ten Gods, special stars) is deterministic and exact from a perpetual calendar. The AI only turns that accurate data into a natural reading — it never fabricates the chart.

Should I enter a solar or lunar birth date?

Both work. If you enter a lunar date, the server converts it to solar for an accurate chart. Knowing your birth time adds the Hour Pillar for greater precision.

How is this different from Western horoscopes or zodiac signs?

A horoscope uses only your birth month and the zodiac only your birth year. Saju reads all four pillars — year, month, day, and hour — so two people of the same sign can get completely different results.

Can I check love compatibility?

Yes. Compatibility is read from the relationship between two people’s Day Masters and elements (generating, controlling, stem combinations, clashes). Just enter both birth dates.