Jang Pan Soo is a meticulous character who has unwavering focus on the subject of his attention, but tends to trip up at the crucial moment. This Drama tell the story about a group of young people who work towards launching a business and achieving success.

Three neighbors face problems they want to avoid, but they grow facing their dilemmas. Anna lives with her mother and lives her life following her mother's wishes, but she has a secret she can't tell anyone. Yoo Ra and her family need to leave their neighborhood due to a reurbanization project in the area where they live. Seo Yeon is the vocalist of an indie band. She's very superstitious, and she can't get over her ex-boyfriend, who broke up with her a year ago.

One day, during a university festival where people are often known to find a partner, the 3 incredibly single members of the robot club decide to attend. There the sloppy and timid Hwi-so meets a very aggressive girl by the name of Hye-jin. His romantic advances, which he learned through reading books and watching YouTube, finally wake up to make their move. But will two finally become one this fall?

Citizens from upscale Gangnam in Seoul start experiencing unusual and terrifying symptoms, devolving into inhuman creatures, leaving only a few survivors with the possibility to make it out alive.