Based on manga "Kanojo wa Uso o Aishisugiteru" by Kotomi Aoki (first published May, 2009 by Cheese! magazine).
"The Liar and His Lover" takes over the tvN Mondays & Tuesdays 23:00 time slot previously occupied by "My Shy Boss" and followed by "Circle" on May 22, 2017.
First script reading took place January 21, 2017 and second second script reading, featuring the main cast, took place February 8, 2017 at CJ E&M Center in Sangam-dong, Seoul, South Korea.