A Saida one-shot, Sana, a flight attendant, never believed the rumors about a hot captain until she traveled with the said hot captain, Dahyun. "We are now bound for Japan, and may I, Sana Minatozaki, ask you out on a date? This is Captain Kim Dahyun speaking."

Sana, at 26 years old, faced various challenges, especially from divorce. She decided to accept the offer to teach in Seongnam and met Dahyun, a 20-year-old who was living alone and happened to be her student.

 It took 15 years for Mina to get the answers to all her "what if" questions during a batch reunion. She finally learns what really happened to her ex-lover named Dahyun.

Kazuha, Mina's daughter, was supposed to be the one not feeling well. However, Mina have other ideas. "Doc, I think I'm having a heart attack," "I'm sorry, but I am a pediatrician." Unfazed, Mina retorts, "Then I can carry your baby, and you can call me a wife,"

Sana, a renowned attorney, enjoyed a fine life until she woke up one day to find herself standing in front of Dahyun, the girl who ghosted her 15 years ago.

In a world where both Dahyun and Sana's families struggle with financial problem, a desperate decision is made to arrange a marriage between the two to reduce their struggles. However, as they embark on this unexpected journey, a startling revelation unfolds

Sana, Momo, and Nayeon went into chaos after discovering that Dahyun had moved into the dorm next to theirs, seemingly to get her attention. The three of them engaged in a childish bet, to capture Dahyun's notice. The question remained: would any of them succeed in winning Dahyun's heart?  

The plot twist in Dahyun's life is where she wants to be before 2023 ends, and she didn't expect it to happen until she found a lost ID.

Dahyun was a photographer who never found a subject model despite having numerous images she created, until she accidentally captures Mina. One thing Dahyun is sure of, she wants Mina to be her subject model for the rest of her life.

Wherein Dahyun, a girl who has trouble moving on from the death of her wife Mina because of this, her cousin Suho plans to visit her together with his actress girlfriend, Sana What will happen when one day Mina’s soul enters Sana to fulfill her promise to the pale girl? How would dahyun react to it? Will dahyun believe in it?  

Dahyun, Chaeyoung, and Tzuyu are known as The Trouble Makers at their university. Everything to them was nothing new until they met Momo, Sana, and Mina. That change their life. Could it be for Good or for Worst?

Dahyun, a doctor neurologist, wondered why there was always a kid she always bumped, not knowing it was her child to her first love, Sana Minatozaki.

A saida au wherein dahyun and sana were in a relationship for years despite having different dreams to achieve and different aura, but as the years go by, one of them changes like a midnight rain   

A saida au wherein Dahyun hates coffee until she meets the beautiful barista named Sana Minatozaki.

A one-sided love was the most traumatizing that will happen in your life in that it was what Dahyun was experiencing right now. Dahyun wanted to move on to Sana and did a not-so-stupid thing where Dahyun confessed her one last letter to Sana using 'The Unsent Project.'

Dahyun doesn't like the idea of liking someone. Still, also dahyun is craving love,  So dahyun decided to confess to her crush Mina using a letter only to find out that mina was dating her best friend. Because of panic, dahyun accidentally gave the letter to the person whom dahyun never wishes to interact with the playgirl of their university named Minatozaki Sana.

You didn't know, What the future holds