Authors Kishimi Ichiro and Koga Fumitake Visit! Pop-Up Event Celebrating 1 Million Copies of 'The Courage to Be Happy' Now Open!

To celebrate the domestic sales milestone of 1 million copies of 'The Courage to Be Happy' (authored by Ichiro Kishimi and Fumitake Koga), a pop-up event is being held at the first-floor entrance of Diamond Publishing's headquarters in Harajuku, Tokyo, until Friday, July 31.

The building's entrance facing Meiji Avenue is entirely wrapped in the signature red of 'The Courage to Be Happy'.

A Free Event Where You Can Experience the World of 'The Courage to Be Happy'!

The entrance and interior walls are decorated with famous quotes from the book, wrapping the space in the same vibrant red as the book's cover design. Inside the entrance, visitors can explore an immersive space featuring a photo spot modeled after the philosopher's study from the book, as well as international translated editions including 'The Courage to Be Disliked', and real reader messages collected from around the world. Interactive elements include a 'Letter Box for Questions to the Philosopher' where visitors can submit personal dilemmas to the authors, and a 'Favorite Comments Board' where attendees can write their thoughts. The comments board has already gathered heartfelt messages and passionate reactions from visitors, including international fans.

Authors Ichiro Kishimi and Fumitake Koga Visit the Venue! Handwritten Signatures and Messages Received

Recently, authors Ichiro Kishimi and Fumitake Koga visited the event space. Upon seeing the venue transformed entirely in red, they expressed their amazement. They toured the exhibition, engaging with the displays and reading visitor messages. On the photo spot wall, they left their handwritten signatures and personal messages.

The event will continue until July 31 (Friday). Open to all visitors free of charge on weekdays. We welcome everyone to experience this rare opportunity to step into the world of 'The Courage to Be Happy'.

Ichiro Kishimi (left) and Fumitake Koga (right) visit the pop-up event, posing for a commemorative photo in front of the quote-covered wall.

At the photo spot, visitors can sit as if engaging in the dialogue between the young man and the philosopher. The wall also features the authors' handwritten signatures and messages.

'The Courage to Be Disliked' and 'The Courage to Be Happy' have been translated into over 50 countries, regions, and languages. A selection of these translations is on display.

The 'Favorite Comments Board' continues to collect written impressions and messages from visitors, including heartfelt notes from international guests.

Event Overview

Event Name: 'The Courage to Be Happy' 1 Million Copies Sold Commemorative Pop-Up Event

Location: 1st Floor Entrance, Diamond Publishing Headquarters (6-12-17 Jingumae, Shibuya-ku, Tokyo)

Dates: April 27 (Mon), 2026 – July 31 (Fri), 2026

Opening Hours: Weekdays 08:00–19:00 (Closed on weekends and public holidays)

Admission: Free

Book Information: 'The Courage to Be Happy'

Authors: Ichiro Kishimi / Fumitake Koga

Price: ¥1,760 (tax included)

Release Date: February 26, 2016

Publisher: Diamond Publishing

Format: B6 paperback, 296 pages

https://www.amazon.co.jp/dp/4478066116

※Images and photos in this release are for editorial use related to this book only.