Tsujimura Mizuki's Bestseller 'Lonely Castle in the Mirror' Surpasses 2 Million Copies in Japan Ahead of its 10th Anniversary

Key facts

  • Tsujimura Mizuki's Bestseller 'Lonely Castle in the Mirror' Surpasses 2 Million Copies in Japan Ahead of its 10th Anniversary
  • Poplar Publishing's bestseller 'Lonely Castle in the Mirror' by Mizuki Tsujimura has surpassed 2 million copies in Japan. Including international editions, the total reaches 2.3 million. Having won 9 awards including the 2018 Japan Booksellers' Award, it remains highly popular as it approaches its 10th anniversary in 2027.
  • Source: PR Times
  • Date: June 2, 2026

Direct answer

Poplar Publishing's bestseller 'Lonely Castle in the Mirror' by Mizuki Tsujimura has surpassed 2 million copies in Japan. Including international editions, the total reaches 2.3 million. Having won 9 awards including the 2018 Japan Booksellers' Award, it remains highly popular as it approaches its 10th anniversary in 2027.

Citation
Tsujimura Mizuki's Bestseller 'Lonely Castle in the Mirror' Surpasses 2 Million Copies in Japan Ahead of its 10th Anniversary (June 2, 2026), PR Times
Source
PR Times
Date
June 2, 2026
Poplar Publishing's bestseller 'Lonely Castle in the Mirror' by Mizuki Tsujimura has surpassed 2 million copies in Japan. Including international editions, the total reaches 2.3 million. Having won 9 awards including the 2018 Japan Booksellers' Award, it remains highly popular as it approaches its 10th anniversary in 2027.
cultureNQ 54/100出典：PR Times

📋 Article Processing Timeline

  • 📰 Published: June 2, 2026 at 20:00
  • 🔍 Collected: June 2, 2026 at 11:20
  • 🤖 AI Analyzed: June 2, 2026 at 12:10 (49 min after Collected)
The bestselling novel 'Lonely Castle in the Mirror' by Mizuki Tsujimura, published by Poplar Publishing in 2017, has surpassed a cumulative total of 2 million copies in Japan across various formats (hardcover, paperback, children's books, e-books, and audiobooks). Including international editions, the total reaches 2.3 million copies.

'Lonely Castle in the Mirror' is a moving story that gently embraces those who feel out of place in society. Since its publication, it has been read by a wide range of generations and became a major topic of conversation, winning first place at the 15th Japan Booksellers' Award in 2018 with the highest number of votes in the award's history. Beyond the novel, the story has been enjoyed through various media including manga, stage plays, and an animated film.

Currently translated and published in 24 countries worldwide, it continues to be loved globally and will celebrate its 10th anniversary in 2027.

FAQ

Is 'Lonely Castle in the Mirror' available in Taiwan?

Yes, the book has been translated into 24 languages worldwide, including a Traditional Chinese version available in Taiwan.

What are the key facts in this article?

Poplar Publishing's bestseller 'Lonely Castle in the Mirror' by Mizuki Tsujimura has surpassed 2 million copies in Japan. Including international editions, the total reaches 2.3 million. Having won 9 awards including the 2018 Japan Booksellers' Award, it remains highly popular as it approaches its 10th anniversary in 2027.

What is the direct answer?

Poplar Publishing's bestseller 'Lonely Castle in the Mirror' by Mizuki Tsujimura has surpassed 2 million copies in Japan. Including international editions, the total reaches 2.3 million. Having won 9 awards including the 2018 Japan Booksellers' Award, it remains highly popular as it approaches its 10th anniversary in 2027.

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