About
Seo Ji Sung is a programmer of the AI smart home appliance development team. One day, she accidentally develops an AI program called Cho Sang Shin, which will identify trashy humans, and she uses it to save people who are in difficult relationships. Jung Kook Hee is a firefighter who doesn't use social media. He is the one and only person that Cho Sang Shin is unable to analyze.
Cast
Song Ha-yoon
as Seo Ji-Sung
Lee Jun-young
as Jung Kook-Hee
Yoon Bo-mi
as Moon Ye-Seul
Gong Min-jeung
as Tak Ki-Hyun
Joo Woo-jae
as Han Yoo-Jin
Nam Min-woo
as Ok Dong-Jin
Kim Gi-ri
as Jegal Soo-Won
Lee Si-hoon
as Bang Jung-Han
Park Han-sol
as Byun Ha-ri
Kim Moon-chan
as Kim Moon Chan
Seasons
Episodes
Season 1
The Refrigerator
Gook Hee, a firefighter, rescues a woman from a car accident. Ye Seul finds out that her boyfriend has been two-timing her with the help of Fridge, which carries personal information of people. Ji Sung is shocked to find out that her boyfriend has been sharing private pictures of her with his friends.
Why Did I Even Meet You?/The Group Chat
Ji Sung invites her boyfriend, Jung Han, to her house and takes nude pictures of him in the shower to use against him later on, just in case. As she eats rich soybean paste stew, she runs into Gook Hee again. Both the mothers of Ji Sung and Jung Han meet to discuss their breakup.
Pine Forest
Ji Sung tries to help Gook Hee find a cat by posting its picture on social media. Director Jegal is found to be the manager of the company’s anonymous board, Jasnamu Sup ("Pine Forest"). Ye Seul meets a dentist, Yu Jin, while doing disinfection work.
Seven O'Clock
Gook Hee finds the cat he has been looking for. Ji Sung’s team works on developing a thermovision camera for firefighters. Ye Seul gets her wisdom tooth pulled out at Yu Jin’s dental clinic. Ji Sung’s ex-boyfriend tries to break into her house.
Master Janggo
Oh Jung locks the training ground doors after the mock test, and Ji Sung and Gook Hee get locked inside. Gi Hyun finds out that her husband left for work without the healthy drinks she has given him. Ye Seul and Yu Jin go on a date, and she tries to figure out what his flaws are.
Jealousy
Ji Sung and Gook Hee decide to spend Friday afternoon together after his photoshoot. Ye Seul learns that Yu Jin makes it a habit to go off the grid in their relationship. Gi Hyun collapses due to low blood pressure, and Oh Jung takes her to the hospital.
First Date Gone Wrong
Ji Sung and Gook Hee go on their first date. Ji Sung receives a call and heads to see Gi Hyun at the hospital. Ji Sung is curious about the relationship between Gook Hee and Ha Ri because they seem friendly. Gi Hyun’s husband tells her to stop trying for a baby. Ye Seul reunites with Yu Jin.
The Gathering
Ji Sung and Gook Hee meet her dad, who happens to be the owner of the record store he frequents. Ye Seul and Yu Jin decide to get married and meet his parents. Ji Sung, Ye Seul, and Gi Hyun and their partners have a get-together to celebrate ahead of Ye Seul’s wedding.
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