Suga Has a Younger Sister? (BTS Fanfic)

One of These Nights

~Yoonmi's POV~

I got out of the car and ran to Jaein once I saw her. We hugged for a while before getting back into the car.

"I felt like its been forever, even though it's only been a couple days." Jaein said
"I know; so much has gone on." I admitted. We sat quiet until we arrived at the store. "Right here please. We won't be long." I said.

We got out of the car and walked into the store. "What did you want to get?" I asked
"Depends on what we want. Do we want ramen or meat?" She replied.
"Why not both?" I laughed
"And this is why we are best friends!" She exclaimed
We picked out some beef, a couple containers of ramen, and some drinks. I said that I would pay, but we ended up splitting it. We got back into the car and made our way to the dorm.
"The only rules is that we stay out of the guys rooms and clean up any mess that we make. My room is technically Yoongi's studio, so we can go in there. He's usually super touchy about his equipment, so we can't touch that." I informed
"That's fine! We'll have so much fun." Jaein pointed out

We arrived to the dorm and put our bags in the studio, aka my room. She looked around the room, admiring the studio. "You need more of you in here Mi, it's too much of your brother." She laughed.
"I mean, this is his studio, but I'm sure that he wouldn't have a problem if I added some more decorations." I agreed.

We both got up, left the room and started to cook our food. We fried the beef and got cups out for the drinks. I started to put the cooked ramen onto the table in the containers. Jaein brought the beef over with chopsticks in her hands. I told her that we can't leave a mess and then we started to dig in. She switched on the tv and we started to eat while watching a movie. We finished half of the beef and all the ramen before falling asleep. I fell asleep on her chest and she fell asleep leaning against the couch.

~Yoongi's POV~

Every once in a while I would glance over at Jungkook, who didn't seem to be on his game ever since the meeting. I finally pulled him to the side while we were going over solos. Hoseok was practicing his when I pulled Jungkook over to the other side of the room.

"What's going on with you kid?" I questioned. Jungkook shuffled his feet before meeting my eyes. "Is is still about Friday?" I added. He nodded his head.
"I don't want to leave her hanging, but I have a responsibility to you guys and ARMY." Jungkook spoke. I put my hands on his shoulders.
"Look, she will be okay, really. Do you know how many of her volleyball games that I missed because of being an idol? She might not be happy about it, but she will be okay. Talk to her when we get back; leaving it alone will make it worse. I'm her brother, so I would hope that I know her best. You'll be okay. We have to focus here for now." I explained. Jungkook looked at me, smiled and nodded. I hoped that he would be okay.

Later on, I texted Yoonmi to see if everything was going good, but I never got a reply. She's the worst at texting back. This time, I decided to call her. She did not answer. The amount of thankfulness that I felt when it was called quits for the night. It was around 10pm when we were able to leave. We piled into the van and headed back to the dorms.

~Yoonmi's POV~

I woke up not too long later after falling asleep, around 9:45, and remembered about the dishes. I got up from the floor and pulled the dishes to be cleaned. Jaein helped me after she got up. We knocked them out quickly and put everything back.

"My brother is going to kill me if I don't get my homework done. Do you have any?" I asked
"Yeah, I have math mostly. What about you?" She asked me back. I pulled out the book I was given earlier. "A little bit of everything." I laughed.

We both got our bags from the studio and sat at the table to do our work. She was a wizz in math and I could be of some use with English. We both put our headphones in. I could hear that she was listening to Gugudan, whereas I was listening to the song that Jungkook and I would be doing with Jungkook on Friday. I saw the missed call and the missed text from Yoongi, but thought that it would be too late to reply. Around 10:15pm, I heard the door unlock and the boys started to pile in.

"Yoonmi?" Yoongi called out. I pulled one of Jaein's headphones out when the boys came in.
"On the table! Jaein's here still!" I shouted back. Yoongi came over to me and started to play choke me. "Respond to my text messages or my calls, you got it?" He teased "Yoongi! This is my best friend, Jaein." I introduced.
"Hi, Nice to finally meet you." She greeted.
"Likewise." Yoongi grinned. He brought the rest of the guys over to be introduced. Everyone was nice, which made me happy.

Jaein's parents picked her up not long after, so she had to go. We refused to let go of each other when she had to leave. Taehyung had to hold me back. He picked me up and tossed me on the couch. I laughed when I hit the couch. I stood up and looked at Jungkook, who flashed me a smile.

"Got homework? You better keep working on it." Namjoon questioned
"I have till next week, and I've already started." I complained
"Still not off the hook girl; get it done." Yoongi added onto Namjoon. I groaned and went back to the table. Everyone besides left the room. He took a spot next to me.
"Yoonmi? I have something to tell you.." He said. I didn't respond, but I picked up my head to look at him. "I can't sing with you in the showcase. We were told today that we will be in Japan at that time. I didn't know until today. I'm sorry. I was really looking forward to it, but ARMY and BTS are relying on me." Jungkook explained. I just smiled, trying to hide how upset I was.
"That's okay. You have prior commitments. I'll figure it out. It's not your fault." I said with a hint of lie in my words. I had to show him that I would be okay. "I'm going to pick another song. I'll tell you what I decide."

I said with an upbeat tone while getting up from the table. I went into Yoongi's room and sat on his bed next to him. He wasn't surprised. He probably knew what was going on. I started to cry, so he pulled my head onto his shoulder and tried to hush me. I kept on crying. I shouldn't be this upset; I mean, I should be used to it by now, but this hurt me. I, by now, was sobbing on his shoulder and saying things in heavy dialect that probably made no sense. Yoongi responded by also speaking in dialect trying to calm me down, but it was no use.

~Yoongi's POV~

I know the way to calm down my sister, but this wasn't working right now. I looked up and saw Jungkook in the doorway; the last fucking thing I needed, an upset sister and an upset maknae. I just nodded to Jungkook and motined him to go to his room. Yoonmi had started to calm down, but she was still crying. I got Jin in the room and had him go to Jungkook while I stayed with my sister. I had a feeling that this would happen.