Gray Man * (Korean title: 회색인간) by Kim Dong-sik has been read or recommended by 2 Korean celebrities, including Rowoon, Huh Yunjin (LE SSERAFIM). Below, each entry shows where they mentioned it and what they said.
Read in a single sitting. Rowoon usually juggles several books, but this one got undivided attention. (Source: Naver Blog)
Book titles and author names marked with an asterisk (*) are machine-translated from Korean. No official English edition was confirmed for them, so read them as approximations of the Korean original shown next to them.