Kim Yoo-jung plays the role of the positive and optimistic four-dimensional girl Gil Oh-sul, who doesn't care about dirt and suddenly decides to work for a cleaning company. The male lead Ahn Hyo-seop is in the final adjustment and will play the CEO of the cleaning company, Jang Sun-kyeol. Song Jae-rim is expected to play the unemployed Choi Gun who lives in the tower room of Gil Oh-sul's house. This is a new character that was not in the original comic and was added during the adaptation. The drama is adapted from the webtoon of the same name. It tells the romantic love story of a man who runs a cleaning company, has perfect financial resources and appearance but has severe mysophobia, and a bright and cute four-dimensional girl who lives without paying attention to details. The director of "Personal Taste" is the screenwriter of "North Korean Sharpshooter". It is expected to be broadcast in April after "Waikiki".