Most investors don't lose because they pick the wrong stock. They lose because they put too much money on the right one.

The Permanent Game is a short, plain-language book about the line between math and romance in a retail portfolio. The math goes in the Core — eighty to ninety percent, quiet, indexed, compounding. The romance goes in the Satellite — ten to twenty percent, loud, human, allowed to be wrong.

Written by a Korean nurse with eighteen years of her own losses behind her, this volume distills five rules and three portraits into roughly twenty pages. No predictions. No tickers to chase. Just the line that has to be drawn before the trades, in writing, on a calendar — not in the moment of conviction.

The personalities are temporary. The arithmetic is permanent.

This book is observation, not investment advice.

— First in the IJin Insight Short Reads series.

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