The Children of Gwaengiburimal (Korean title: 괭이부리말 아이들) by Kim Jung-mi has been read or recommended by 2 Korean celebrities, including Yeri (Red Velvet), Jonghyun (SHINee). Below, each entry shows where they mentioned it and what they said.
The first book Jonghyun stayed up all night reading. (Source: fan compilation on Postype)