Based on webcomic "Kyeongirowoon Somoon" written by Jang Yi (published from August 23, 2018 via Daum Webtoon).
"The Uncanny Counter 2" takes over tvN's Sat. & Sun. 21:20 time slot previously occupied by "See You in My 19th Life" and followed by "Arthdal Chronicles: The Sword of Aramun" on September 9, 2023.
Even though he's playing a high school student, Cho Byeong Kyu (So Moon) is actually a year older than Kim Se Jeong (Do Ha Na).
"The Uncanny Counter " takes over OCN's Sat. & Sun. 22:30 time slot previously occupied by "Search" and followed by "Times" on February 20, 2021.
Ep. 9 & 10 was originally scheduled to air Saturday, December 26, 2020 and Sunday, December 27, 2020, but OCN has decided to delay the broadcast one week until Saturday, January 2, 2021 and Sunday, January 3, 2021.