Romance is sweet and bitter — and life riddled with ups and downs — in multiple stories about people who live and work on bustling Jeju island.

The police officers at South Korea's busiest patrol division toil day and night as keepers of law and peace — but the reality is far from orderly.

Set in the 1960's and 1970's. Soo-In is a smart student who has never missed ranking at the top of her class. Due to her poor family situation, she begins to work at a factory instead of going to college. Nevertheless, she pursues her dream.

Life is ever-delightful — and ever-challenging — for a group of friends in their twilight years as they rediscover themselves through love and family.

A homeroom teacher of Yosan Private High School has an accident, and thus a substitute comes to fill in. Han Bong-Gu is a mysterious man, and after strange occurrences the class president Ye-Rim tries to get to the bottom of this mystery.