In 1988, fifth-grade elementary school student Han Jin-joo tries to prepare expensive gifts to make up with a Atheletic Teacher who is angry with her because of a minor misunderstanding in a high jump class.
Bori, an 11-year-old girl who lives in a sea village, is the only family member who can hear. Being an elementary school student, Bori gradually becomes more familiar with communicating with her friends at school by speaking and has a difficult time joining a sign language conversation at home. Why was I the only person born different from my family? The more she thinks about it, the more she feels alienated.
Eun-seo struggles repeatedly to find her own place. Her father Jin-cheol lives alone in a house where his family has left. Eun-seo unexpectedly returns her childhood home to live with her father. There, she faces traces of her family she had forgotten.
Deliveryman Jongsu is out on a job when he runs into Haemi, a girl who once lived in his neighborhood. She asks if he'd mind looking after her cat while she's away on a trip to Africa. On her return she introduces to Jongsu an enigmatic young man named Ben, who she met during her trip. And one day Ben tells Jongsu about his most unusual hobby...
Jiseon, a working mother who takes care of her young daughter, Daeun, after the divorce, employs a nanny named Hanmae. One day, Jiseon finds out that the nanny and her daughter are missing, and she sets out to search for them.
Min-joon, who has failed the civil service exam for 10 years, gets a lucky pencil from his friend, Kyung-joon, saying, "When you do it, you get a perfect score."
