"Don't Let Go of Your Spirit" is a webtoon that has been viewed 2 billion times in 10 years, and is a popular webtoon on Naver that has received a rare number of views and a near-perfect score. The webtoon is loved by readers for its laughter-inducing stories of a family that "let go of their spirits". Lee Jin Hyuk plays the role of Jung Shin (pronounced the same as "spirit"), the son of Section Chief Jung and a college student in the Department of Electronic Physics at Sangdeok University in "Don't Let Go of Your Spirit".