What each member's day pillar says about the partner they are actually drawn to.
In Korean astrology, each BTS member's ideal type is read from the day pillar of their Saju chart — the stem is the person and the branch is the spouse palace, 배우자궁. This page lists all 7 readings; each links to the full one.
Each reading works from the day pillar and the month the member was born into. Birth times are not public, so these use three pillars rather than four. How day pillars work →
Two full charts read against each other is the actual method. Compare two birth dates and see where they support each other and where they push.
COMPARE TWO CHARTS