Loving the wrong guy/KTH FF

Chapter 1

Namjoon's POV

"What does he even think of himself?" said Mr.Kim banging on his table.

I just stood there without a word.

"Is he gonna give up everything for a girl", he added.

" I tried multiple times to talk to him but he's not responding sir", I replied.

With a heavy sigh, he said, " We must think of a way Namjoon. He can't just leave everything like this"

"Alright sir, I will try my best" saying that I left his office.

Time skip
At taehyung house

I entered the house and went directly to his room.

"Yahh...Kim Taehyung, open the door", I wailed

Still no response

" Aishhh..... this man how long are you gonna stay like this?" I shouted again.

Then the door cracked open and a messy Taehyung stood in front of me.

"Come in", he blankly said.

" Did you find her location", he added curiously.
" Not yet I have no idea where she went", I replied.
"Did you guys fight the other day", I again asked.
" No, she just left me that's all", he said with a tear leaving his eye.

I don't know how to handle this idiot.
Is she that important to him?
And that Hana also how can she just leave him like this?

But then I change the topic.
"Your dad called me. He asked about your situations", I said looking at him.

He just sat there like a mad man with no hope.

"Taehyung ahh, you can't leave everything in the middle like this".

"You need to complete your work. I will find her no matter what happens", I consoled him.

" Contact me as soon as you find her Namjoon", he just said simply.

"I want to be alone for now", he continued.

I have no choice but to get out of there.

Time skip
Y/N Pov

I was making dinner for me and my brother.
Just then the door opened indicating my brother's home.

" OHH! Oppa you're home", I said smiling.

"Yes sweetie, I will change and come down", he said receding my smile.

An hour later,

I was rinsing the dishes and my brother suddenly called me," Y/N, Are you done?
I need to talk to you".

"With me about what?" I answered.
He just went and sat down on the couch without saying anything.

Completing my work I went to him and sat down next to him.
Before I could speak a word he said, "Y/N I need your help. I'm saying this to you after thinking a thousand times and please don't hesitate to reject but I really need your help. No scratch that he needs our help".

What is he talking about? He? Who is this he? And what kind of help?

"Who are you talking about and what kind of help?", I asked with a confused face.

"I will explain everything to you but please don't interrupt", he said with a serious face.

I just nodded then he started.

"You have a twin sister named Hana", he told me which shocked me to the core.
I was about to say something then I remembered I told him I won't interrupt so that's what I did.

"She is my boss's girlfriend. They were in a relationship for 5 years. He loves her a lot but she just disappears. He hasn't done anything good since then. He stays in his house all day for three days. He is becoming a mess day by day. He told me to find her location but I don't even have a single clue about her whereabouts. His father is also damn mad at him for his behaviour but what can he do when his son is so damn in love with this girl", he looked at me after his kind of boring story.

"Get to the point Oppa", I asked clearly not liking where this is going.

"You know I want you to be her for a few months", he said while looking down.

Wait what the hell did he just say? I have a sister and he want me to be with her boyfriend??

" WHAT?", I replied.