Where Seohyun finds ways on how to bring Yoona on their first valentine date.  

Wherein teenage Seohyun had a wish to see her favorite idol group when someone granted it for her unexpectedly. 

What will you do if you will be trap with your crush? Not to mention, the very popular student in your school?   This is what happened to Seohyun, a junior high school student that had been crushing on a senior student, Yoona.

When a transfered student suddenly came to their class, Yoona noticed how her girlfriend doesn't have time with her anymore. Out of jealousy, she ask for a breakup.

Where Yoona comes with a colleague from work to celebrate her 30th birthday, turns out an unforgettable one as she finds herself dancing with a Stranger.

In which, Yoona is visited by an unexpected guest, in the day of her wedding.

Seohyun who had been so busy with her schedule finally got a free day for herself. But instead of spending it time alone, she decided to call Yoona and invite her for a date.

Yoona received a strange stick note telling her to come to Room 711 on the night of her birthday. Her friends she invited to come to her apartment didn't come which cause her to be curious about the said room.  

Seohyun is so happy when she said yes to Yoona's proposal but she's happiest while she's walking in the aisle, watching Yoona from the distance, looking so emotionally happy. Both of them deserves all the happiness in the world... Until something happened that shocked everyone in the ceremony.

Seohyun came back to Seoul to meet with her old friends... only to find herself telling her friends about the story of her first crush back in high school

Seohyun receives a call one day telling her that Yoona, her 5 years girlfriend is in the hospital. And the reason of her hospitalization just broke her heart into pieces.

Wherein Seohyun tries her best to chase her long time girlfriend, Yoona after she hurt her.

Seohyun is close friend with Yoona, who is a colleague in an advertising company she is working. They get along in their work that their team leader always give them the task together. But their friendship is only in the company as both decided doesn't want to share their personal lives.  

Yoona and Seohyun had been dating for four years and every New Year's Eve, they always made it sure not to drink because they have works on the following day as Securities in Incheon Airport. But that tradition was accidentally broken when something happened.

Sooyoung is Seohyun's best friend that do vlogs every time she's in the mood. On the day of Christmas, she suddenly thought of featuring her best friend on her vlog and the latter couldn't say no to it.

Yoong is the saddest person on earth when He failed his thesis, whilst his girlfriend, Seohyun, passed the project.   What will his parents reaction if he's going to reveal that He is not graduating this year?   Read and find out. keke.