ZEROBASEONE · Bias match
Korean Saju reads compatibility from two birth charts — not sun signs. Enter your birthday and see your match type with Gunwook in 10 seconds. Free.
Gunwook is The Sunlit Oak — a Yang Wood Day Master (the core element of their Four Pillars). That's the chart we'll read yours against.
| Pillar | Stem | Branch |
|---|---|---|
| Year | 甲 Gap · Yang Wood | 申 Sin · Monkey · Metal |
| Month | 丁 Jeong · Yin Fire | 丑 Chuk · Ox · Earth |
| Day | 甲 Gap · Yang Wood | 午 O · Horse · Fire |
| Hour | Unknown (birth time not public) | |
| Wood | Fire | Earth | Metal | Water |
|---|---|---|---|---|
| 2 | 2 | 1 | 1 | 0 |
Birthday: Korean Wikipedia gives this date (checked October 20, 2026). Pillars: Palja's manseryeok engine, year and month switching at the exact solar term.
Free · your birthday stays on your device
Gunwook was born on January 10, 2005. Gunwook's birth time is not public, so Gunwook's Saju chart has three pillars (year, month and day) instead of four.
Gunwook's pillars are 甲申 (Gap-Sin) year, 丁丑 (Jeong-Chuk) month and 甲午 (Gap-O) day. The Day Master is Yang Wood (甲 Gap), and the six characters hold 2 Wood, 2 Fire, 1 Earth, 1 Metal and 0 Water.
Saju (사주, "Four Pillars") maps your birth date and time to five elements. Compatibility compares two people's day pillars — the part that rules relationships — to score chemistry, stability, growth and friction. Gunwook's chart is fixed; yours is calculated live in your browser (your birthday never leaves your device).