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Psychology

Butter

by Asako Yuzuki · 2025 · 464 pages

4.22· 1280 ratings

Psychologybook summaryBook ClubYuzuki
Key Insights · 8 min

Butter

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A Recipe Opens the Door

Rika Machida, 1 a thirty-three-year-old journalist at the Shūmei Weekly, has written to Manako Kajii 2 for months without reply. Kajii 2 — convicted of killing three men she met through dating sites, famous for her lavish food blog — refuses all press. When Rika 1 visits her best friend Reiko 3 in her new suburban home, they discover butter is impossible to find due to a national shortage. Over dinner, they read The Story of Little Babaji, where tigers spin round a tree until they melt into golden butter. Reiko, 3 a former PR strategist with a gift for disarming difficult people, suggests Rika

Lesson 1: A Recipe Opens the Door

This principle from Butter is backed by Asako Yuzuki's extensive research and real-world examples. Understanding it deeply can shift how you approach decisions, relationships, and long-term planning in meaningful ways.

Lesson 2: Butter, Not Margarine

This principle from Butter is backed by Asako Yuzuki's extensive research and real-world examples. Understanding it deeply can shift how you approach decisions, relationships, and long-term planning in meaningful ways.

Lesson 3: The Pasta Makoto Rejects

This principle from Butter is backed by Asako Yuzuki's extensive research and real-world examples. Understanding it deeply can shift how you approach decisions, relationships, and long-term planning in meaningful ways.

How to Apply Butter's Lessons

The real value of Butter lies in its applicability. After reading, the most important step is identifying which of Asako Yuzuki's principles speak most directly to your current situation.

Consider keeping a journal while reading — noting where the ideas challenge your current approach and where they confirm what you already suspected. The friction of your own resistance often points to the most important insights.

Key Quote

"A Recipe Opens the Door" — Asako Yuzuki, Butter

About the Author

Asako Yuzuki is the author of Butter. The book reflects years of research, observation, and synthesis of evidence from multiple disciplines.

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