A Piece of Your Mind[3] (Korean: 반의 반; RR: Ban-ui Ban) is a 2020 South Korean television series starring Jung Hae-in, Chae Soo-bin, Lee Ha-na, and Kim Sung-kyu.

[5][6][7] A drama-romance between Moon Ha-won (Jung Hae-In) and Han Seo-woo (Chae Soo-Bin).

Moon Ha-won is an AI programmer and he is the founder of AH Company.

Meanwhile, Han Seo-woo works as a classical music recording engineer.

Due to the decreasing ratings, and because tvN recorded its lowest ratings in two years during its Monday–Tuesday time slot, it was announced on April 8, 2020 that the series would be shortened by 4 episodes, bringing the total number of episodes to 12.