Woo-jin, who had an affair with his girlfriend a month ago, becomes anxious when he stops menstruating.

Se-hun and Jeong-i, who are in a long-distance relationship, meet and spend time together for the first time in a while.

Se-hun and Jeong-i, two people who express their hearts in vastly different ways. A journey through four seasons—winter, spring, summer, autumn, and back to winter again. How will the time we shared be remembered?

Although Jungi and Misuk are separated, once a year they have dinner together at Misuk’s place. While Misuk prepares food, Jungi lounges about on the couch all day long. But as soon as their daughter Eunyoung comes home, Jungi asks Misuk to take a walk with him outside. Misuk follows him reluctantly and tells him a long-held secret during the walk.

Actor Lee Donghwi plays a character named Park Kyungsoo, who is anorexic. Becoming deeply involved in the role, he fasts throughout the shooting and is highly praised by the film crew. Although he endures the suffering well until the last day of shooting, his instinct for food results in the confrontation between Donghwi the person and Donghwi the actor. He tries secretly eating, but it does not work.

Jo Dal-hwan plays Lee Ho-yeon, a salesman from a pharmaceutical company who is very people-shy.

Bori, an 11-year-old girl in a seaside village, is the only family member who can hear. As an elementary school student, Bori becomes more and more accustomed to talking with her friends while finding it hard to communicate with her family in sign language.