The Lemon (Korean title: 레몬; original title: 分身) by Keigo Higashino (東野圭吾) has been read or recommended by 2 Korean celebrities, including Park Ji-hoon, IU. Below, each entry shows where they mentioned it and what they said.
Mentioned to fans on IU's official fan café in 2019. (Source: IU book list compiled on Naver Blog)