Koyonari turns stems, double-hours and solar terms into a daily hexagram card. Read the primary and relating hexagrams, mark three actions on the reverse, and keep seals, notes and photographs in a lunar-month Daybook.
Seven casting modes include moment, question, manual trigrams, daily card, coins, objects and shared numbers. Birth-year details add zodiac, Nine Star Ki and Nayin, with a natal hexagram when the birth hour is known.
The library covers hexagrams, solar terms and classical terminology; casting and daily records work offline.
