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.

A big-city dentist opens up a practice in a close-knit seaside village, home to a charming jack-of-all-trades who is her polar opposite in every way.

As a chief of staff in the National Assembly, Jang Tae-jun influences power behind the scenes while pursuing his own ambitions to rise to the top.

Kim Young Ho is a personal trainer for Hollywood stars. Even though he comes from a wealthy family background, he suffered a devastating injury during his childhood days. Now, he overcomes his problems with patience and stubbornness. Meanwhile, Kang Joo Eun is 33-years-old lawyer. She has struggled to support her family. Now, she is overweight and challenge her-selves for a diet.

Yoo So Joon owns a real estate company worth 200 billion won. When he sees his future self living unhappily, he decides to avoid that fate by marrying Song Ma Rin without love. While their start is a fake marriage, he sees that his wife gets hurt because of him, and it starts to distress him. Slowly he will be falling in love with her, despite marrying her for selfish and loveless reasons.

Young Min and Mi Young are young couple who get married after graduating from college. Following the honeymoon period, they begin to bicker with each other. While waiting for her husband at a cafe one day, Mi Young bumps into her ex-boss. Young Min sees this and gets the wrong idea. As they struggle to make their marriage work, Young Min and Mi Young gradually understand what love really is.

Dae Woong is born with a silver spoon in his mouth and dreams of becoming an action movie star. In pursuit of this dream, he visits a temple where he accidentally releases a nine-tailed fox trapped in a painting for 500 years. In the midst of this the nine-tailed fox accidently loses her orb. Her goal now is to reclaim it, and she also comes to know that if she carries the orb for 100 days, she will become a human. Can the nine-tailed fox become human?