69 Sixty Nine (Korean title: 69 sixty nine) by Ryū Murakami (村上龍) has been read or recommended by 2 Korean celebrities, including Lee Jun-hyuk, Jinyoung (GOT7). Below, each entry shows where they mentioned it and what they said.
Remembers a line saying Pisces go mad when denied what is wanted, memorable because both the protagonist and Lee Joon-hyuk are Pisces. (Source: fan-compiled Notion page)