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.
Directed by Oh Mi-Kyeong
Song Ha-yoon
Seo Ji-Sung
Lee Jun-young
Jung Kook-Hee
Yoon Bo-mi
Moon Ye-Seul
Gong Min-jeung
Tak Ki-Hyun
Joo Woo-jae
Han Yoo-Jin
Nam Min-woo
Ok Dong-Jin
Kim Gi-ri
Jegal Soo-Won
Lee Si-hoon
Bang Jung-Han
