“The Courage to Be Happy” Surpasses 1 Million Copies in Japan! An Exceptional Monumental Achievement Reaching a Million Following “The Courage to Be Disliked”! Commemorative Pop-up Events Also Confirmed!
NQ Score
78/100
N1 Content Completeness
8
AI Summary (NQ-processed)
The book 'The Courage to Be Happy' reached 1 million copies in Japan. To commemorate this milestone, Diamond Inc. is launching a campaign targeted at 23-year-olds, including limited edition wraparound bands and merchandise.