Find your Nine Star Ki main star

Nine Star Ki is a Japanese energy system of nine stars, each tied to one of the Five Elements. Your main star — set by your birth year, corrected for Setsubun — describes your core temperament, your strengths and your natural rhythm. Birth Codex determines it precisely, alongside 22 more cosmic systems.

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The 9 stars

Frequently asked questions

How do I find my Nine Star Ki main star?

Your main star is based on your birth year — but the year turns at Setsubun (early February), not January 1. Birth Codex applies the correction and determines your star precisely.

What is Nine Star Ki?

Nine Star Ki (Kyusei Kigaku) is a Japanese system of nine energies based on the Chinese Five Elements. Your main star describes your core temperament and life rhythm.

What does my main star tell me?

Your main star's element and number reveal your nature, strengths and the patterns you grow through. Birth Codex sets it alongside 22 more cosmic systems.