When Jo Gang-Ja attended high school, she was notorious for fighting. She gave birth to her daughter A-Ran in her late teens and became more responsible. Her daughter A-Ran is now a high school student, but A-Ran is bullied at school. Jo Gang-Ja decides to go back to high school to protect her daughter. Jo Gang-Ja becomes a high school student again.
Explore the relationship of two people as they go from being “just acquaintances” to “a genuine couple” — Yoon Jin Ah, a coffee shop supervisor in her 30s, and Seo Joon Hee, a designer at a video game company who has just returned from working abroad.
Hyun-Soo is an aspiring drama series writer. She uses "Jane" as her username and begins chatting with username “Chakhan Seupeu” (‘Good Soup’) online. “Chakhan Seupeu” is actually Jung-Sun. He dreams of becoming a French food chef. They meet in real life.
Yeon Jae endures harassment and unfair treatment from her boss because she doesn’t want to lose her job. However, she comes to regret this decision when she hears that she has only six months to live. Ji Wook was born with a silver spoon in his mouth. But he doesn’t like the life that his father wants him to live. Then he meets Yeon Jae, who is running out of time to find the love of her life. Will Ji Wook find happiness with Yeon Jae?
Han Yeo-reum is a furniture designer who owns a workshop space that she shares with other designers. For the past three years, she's been dating Nam Ha-jin, a plastic surgeon with a sweet and gentle personality. But Yeo-reum's peaceful existence is shaken when her ex-boyfriend Kang Tae-ha suddenly reappears in her life. The CEO of an interior design company, Tae-ha is a smart, confident man with a strong competitive edge who always gets what he wants. Meanwhile, Ha-jin's childhood friend Ahn Ah-rim has secretly been carrying a torch for him all these years. As she begins working with Tae-ha, Yeo-reum is forced to reevaluate her romantic history, which sets her off on a search for true love.
An old stately inn stands in the heart of Seoul. It may be old, discolored, and weathered, but Nakwon Inn exudes old-world charms. As the typical cold uneventful winter comes to an end at the inn, guests start to arrive one by one as if each had promised to be present. Strangely and coincidentally, each one of them repeats Never Twice as they enter. The truth is, they all have a fateful reason to be there. What could have brought these individuals together? And what do they all have in common considering their long-term stay, assigned room numbers, gender, age, and hometown? The real reason for coming to Nakwon Inn unfolds.
The love story between a top actress and an airline director who each suffers an unusual phenomenon. He suffers from prosopagnosia, while every month she transforms into someone else for a week.