The series is about the office workers of Marketing Team 3 at the home appliance headquarters of Gaus Electronics—a multinational company. It highlights the highs and lows of corporate life, and love and friendship between the employees.

A bus full of children mysteriously vanishes. When an altered version of a grieving mother's son returns years later, she must grapple with the technologically revised reality she has created.

An aspiring writer deep in debt encounters a young man with no memories and strange abilities. Together they fight injustice and form an unlikely bond.

In 2024 Seoul, fate-bound ties to Gyeongseong unravel when Chae-ok meets Ho-jae, a man with an uncanny resemblance to Tae-sang. What will destiny reveal?