Years ago, back in Seoul High School, you fell real hard for a upperclasswomen that is in 3rd year while you were a 1st year. The 3rd year girl's name is Kim Seo-yeon, she was the student council president and also the year head of the 3rd years, meaning that she was fully incharge of all the students, even fully able to control the other year heads, she was the model student and beauty queen of the entire school.

How did you guys meet? It was when you first enrolled, the 2nd year head and members were incharge of the 1st years' orientation, basically helping the juniors to bond with each other and also know how things work here. The 2nd year head, Park Hyungseok, he was really fierce, when the entire batch made a big mistake after tearing the cardboard poster for decision making from the judge. You, the brave one, didn't do it but took the blame. You stood up with your hands behind you, standing at attention.

"It was me, it's my fault so please don't blame the others."

Hyungseok did not believe you and responded.

"If you were the one, you wouldn't have stood up so bravely. And plus, why is it so hard to just admit HUH?"

He shouted the last word loudly, scaring the rest of your peers.

"I will do anything in order to get you forgive them."

Hyungseok scoffed, then smirked.

"Anything, huh? I want you to get the signature of the 3rd year head."

Hyungseok's 2nd year peers' mouths dropped, because it was such an impossible mission, no one had succeeded. But you, unknown of the impossibility, agreed.

So timeskip to when you actually got Seo-yeon's signature on Sports Day for helping to organise the events the entire day. You even got closer to Seo-yeon, that's how you and her started dating secretly. Everything was a win-win, your peers got pardoned and forgiven. But Hyungseok told the entire junior batch that he had actually forgived us, but he just wanted to see who would take the blame for the pack. And it was me, so I was offered to be a year head next year for 2nd years.

But on her graduation day, 28th November 2015, you wore a mascot and a balloon to surprise her, she recognised you and pulled you aside after taking photos with her family and friends.

"Listen, we need to break up. Don't ask why, just think the reason as that you're too young for me. Even if it's just 2 years."

You wanted to say something but she rushed off back to her friends already, you let go of the balloons, the balloons floated in the air. You turned around and walked sadly.

10 years passed, the year was now 2025, you were now 25 years old and Seo-yeon was 27 years old. During the 10 years, you definitely struggled the first 5 years, but you gradually tried dating other people but still couldn't get rid of the sting, you were a player at night but a professional heart surgeon and perfect daughter at day. Your friends were so tired of taking care of your drunk ass for the 5 years, but was even more concerned when you turned into a player, constantly having fun with girls.

One day, you brought your mum to the best hospital in Seoul, which was Kim Medical Hospital. Your mum, Kang Hae-rin, needed to rehabilitate her skin and got referred to the best dermatologist. You managed to bring your mum to the hospital but couldn't stay since you had to go do something important. So your little brother, Kang Minwoo, 20 years old, currently serving the army, was on his weekend so he took your mum to the doctor's office instead. The doctor ended up being Seo-yeon, and Mincheol fell for her.

When they returned, Mincheol kept rambling about how beautiful and pretty the doctor was. Your mum shook her head, sat down, explaining that the doctor will be coming to the house later since she couldn't go over to the hospital for a 2nd time. It could've all been done at once but the doctor had a busy schedule in between, so this was the only way.