**Fuutarou Uesugi**

"WOW! you're good Uesugi-san!" said YOtsuba as I taught the three girls their lesson for tomorrow.

Sitting in the living room of the Nakano sisters' apartment, surrounded by their belongings and the aroma of takeout food, I couldn't help but feel a sense of contentment. It had been a few weeks since I began tutoring the sisters, and while it was a challenging job, I had grown fond of their unique personalities.

At that moment, I was joined by Ichika, Yotsuba, and Itsuki, who were all casually snacking on some food from the takeout bags Itsuki has bought.

"Do you think Miku and Nino will be long?" Ichika asked, taking a bite of her sushi roll.

"I'm not sure, but we can start without them," I replied, trying to keep my focus on my textbook. I was supposed to be teaching them, after all.

Yotsuba chimed in, "I'm so excited to learn today! I want to improve my grades and make everyone proud."

Itsuki nodded in agreement. "Me too! I think with Fuutarou's help, we can all achieve great things."

I smiled, feeling grateful for their enthusiasm. "I'm glad to hear that. So, what subjects do you want to focus on today?"

"Well, I need help with math," Ichika admitted, looking a bit embarrassed. "It's never been my strong suit."

Yotsuba nodded, "And I need help with science. I always get confused with the formulas and concepts."

Itsuki added, "I could use some help with English literature. The readings are so dense, and I struggle with analysis."

"Okay, great. Let's start with math," I suggested, pulling out a worksheet from my bag.

As we began to tackle the problems, the conversation shifted to our school experiences. "What's your favorite subject, Uusegi-San?" Yotsuba asked, munching on some chips.

I thought for a moment before replying, "I actually enjoyed history a lot in high school. Learning about different cultures and past events always fascinated me."

"That's cool Fuutarou-kun!" Ichika exclaimed. "I like history too, but my favorite subject is probably art. I love to draw and paint."

Yotsuba grinned, "I love gym class! It's so much fun to play different sports and games! Can we do that Uesugi-san?." said Yotsuba

Itsuki added, "I'm the opposite. I prefer studying and reading. My favorite subject is literature."

As we continued to chat and work through the problems, the door of the Nakano apartment suddenly opened.

Miku walked in. "Hey, I'm late, sorry Fuutarou" Miku apologized, holding a bag of groceries.

"No worries," I said, putting away the worksheet. "We were just getting started. Do you want to join us?"

Miku placed the groceries on the table and joined us in studying. "What are we working on?" she asked, taking a seat next to Yotsuba.

"We were just going over some math problems," I explained, handing her a worksheet. "But we can switch to something else if you prefer."

Miku looked over the sheet, her brows furrowing in concentration. "No, this is good. I need to improve in math anyways," she said pausing before addressing me once more. "Hi fuutarou," she greeted me sweetly her cheeks blushing.

As we worked on the problems, the conversation turned to the groceries Miku had brought. "What did you buy?" Ichika asked, peering into the bags.

Miku pulled out a few items, including vegetables and meat. "I thought I'd make some stir-fry for us later," she said with a smile.

"That sounds delicious!" Yotsuba exclaimed, clapping her hands.

"Miku where's Nino?" I asked her.

"Oh, she went to the convenience store for a while," Miku remarked.

As I was sitting in the living room of the Nakano household, waiting for Nino to come back from her trip and continue our study session, I suddenly heard the sound of the door opening.

I turned to see Nino walking in, holding the hand of a man I had never seen before. He had medium-length thick black hair, intimidating black eyes, and was wearing a tracksuit with an orange stripe down the side, black sneakers with vibrant orange laces and soles, and a black t-shirt that had a symbol that was reminiscent of the letter "N."

As they walked in, Nino turned to us and said, "Guys, I want you to meet someone." She then looked at the man holding her hand and smiled. "This is Subaru Natsuki. He's my boyfriend," she said proudly.

I was shocked! however, My initial shock turned into confusion as Nino introduced him as her boyfriend, Subaru Natsuki. I couldn't help but feel a twinge of jealousy at the sight of them holding hands.

"Hi there! I'm Subaru Natsuki, and not only am I clueless, but I'm also broke beyond compare! Nice to meet ya!" he exclaimed, posing for us.

I watched as Nino and Subaru sat down on the couch opposite me. Miku, Ichika, Yotsuba, and Itsuki all looked just as surprised as I was. "Nino, you never told us you had a boyfriend," Miku said.

Nino shrugged. "It's not like it's a big deal. We just started dating."

"But how did you meet him?" Ichika asked.

Nino smiled. "We met at a convenience store. He was buying Chips and cup noodles, and I was buying a pack of gum." said the long-haired Nino.

I couldn't help but feel irritated at the thought of Nino dating someone she had just met. "That's pretty sudden, Nino. Are you sure you're ready for a relationship?" I asked, trying to hide my jealousy.

Nino rolled her eyes. "Don't worry about me, Fuu-kun. I know what I'm doing."

Subaru grinned. "Yeah, don't worry about her Bro. She's got me to take care of her now."

I couldn't help but feel annoyed by Subaru's cocky attitude. "Well, as long as you're both happy, I guess that's all that matters," I said, trying to sound supportive.

Nino and Subaru spent the next few minutes talking about their interests and hobbies, and I couldn't help but feel left out. I didn't know what to say or how to act around this new guy who had suddenly appeared in our lives. It was clear that Nino was smitten with him, and it made me feel uneasy.

After the initial shock of meeting Nino's boyfriend, we all settled down and started our usual study session. I had my hand's full teaching Yotsuba, Ichika, Itsuki, and Miku, but I couldn't help but notice Nino and Subaru cuddled up on the couch, completely ignoring our study session.

It was hard to concentrate with Nino and Subaru whispering sweet nothings to each other and occasionally giggling. I couldn't believe how much they were showing affection towards each other, especially in front of us.

Somehow this irritated me, but I attempted to relax. It is not my place to be jealous.

I tried to focus on the lesson at hand and teach the girls, but I couldn't help but feel distracted. I could see the girls glancing over at Nino and Subaru every now and then, clearly just as bothered as I was.

It wasn't until Miku asked a question about the topic we were studying that I realized I had completely zoned out. I quickly snapped back to reality and tried my best to explain the concept to her.

As I continued to teach, I couldn't help but wonder why Nino wasn't participating in the study session. Did she not care about her studies anymore now that she had a boyfriend? It was frustrating to see her prioritize her relationship over her education.

After a while, we took a break to get some snacks and stretch our legs. I noticed Nino and Subaru were still on the couch, cuddled up and looking even more in love than before.

I walked over to them and cleared my throat to get their attention. "Hey, Nino. We're taking a break right now, but we still have a lot to cover. Are you going to join us for the next session?"

Nino looked up at me and smiled. "Sorry, Fuu-kun. I'm not really in the mood to study right now. I'd rather spend time with my Subaru."

I couldn't believe what I was hearing. Nino was always one of the most hardworking sisters, and now she was putting her studies on the back burner for a guy she had just met. It was frustrating to see her priorities shift so suddenly.

I took a deep breath and tried to remain calm. "Nino, I understand that you're happy with Subaru, but your studies are important too. You can't just ignore them because you're in a relationship."

Nino's expression turned sour. "I know that, Fuu-Kun. But I don't need you to tell me what's important in my life."

I could see that she was getting defensive, so I decided to drop the subject for now. We still had a lot of studying to do, and I didn't want to waste any more time arguing with Nino.

As we returned to the study session, I couldn't help but feel frustrated and worried about Nino's sudden change in priorities. I knew that I had to talk to her about it eventually, but for now, I needed to focus on helping the other sisters with their studies.

**Natsuki Subaru**

As I sat on the couch with Nino, I couldn't help but notice how beautiful her sisters were. Yotsuba's cheerful smile, Ichika's alluring confidence, Itsuki's intellectual charm, and Miku's quiet allure all stood out to me in their way.

A thought occurred to me: if Nino and I were happy together, why shouldn't my friend Kazuma try to pursue a relationship with one of her sisters? It could be a great opportunity for all of us to spend time together and strengthen our bonds as a group.

I decided to text Kazuma and see if he was interested in meeting Nino's sisters. As Nino excused herself to go to the bathroom, I quickly typed out a message to him.

"Hey man, it's Subaru. I'm with my new girlfriend Nino and her sisters right now, and I think you should come to meet them. They're all really beautiful and I think you might hit it off with one of them."

I hit send and waited for Kazuma's response. A few minutes later, my phone buzzed.

"Subaru, you dog! Of course, I'm interested. Which one do you think would be the best match for me?"

I grinned at Kazuma's enthusiastic response. "Honestly, they're all great in their way. Why don't you come to meet them and see for yourself?"
Kazuma agreed, and I couldn't wait for him to arrive. It would be great to spend time with Nino's family and introduce my friend to her sisters. Maybe it would even be the start of a new romance.

As Nino returned from the bathroom, I put my phone away and snuggled up with her on the couch. I could feel her warmth against my chest. I couldn't help but feel content and happy as I stroked her hair and whispered sweet nothings in her ear.

Out of the corner of my eye, I could see the Quintuplet sisters looking at us with a mixture of shock and awe. I could feel the tension and jealousy emanating from Fuutarou, who seemed to be struggling with our public display of affection.

"I love you, Nino-tan," I said tenderly.

"I love you, Subaru-kun," she replied lovingly.

Nino's words made my heart swell with happiness. I leaned in closer to her and pressed my lips against hers in a gentle and tender kiss.
I could hear the Quintuplet sisters gasping in shock at our affectionate display, but I didn't care. All that mattered was Nino and the love we shared.

Fuutarou, on the other hand... Is upset! Hehehehe!

**Satou Kazuma**

As soon as I received the pictures and profile links of the Nakano sisters from my friend Subaru, I knew I had to act fast. I couldn't resist the temptation to stalk them and find out more about them.
Without a second thought, I closed my PC game and headed straight to my bed. I couldn't wait to see the pictures of the sisters that Subaru had sent me.

"Subaru's a legend! His girlfriend is stunning," I muttered to myself as I scrolled through the pictures. Suddenly, my eyes locked on a particular sister.

"Wow! Holy moly, Subaru was right! They're all gorgeous! And who is this one? Miku? She's definitely my type!" I exclaimed.

Without hesitation, I lay down on my bed, hugging my pillow as I daydreamed about Miku. I knew deep down that I had to make her mine, no matter what it took.

I promised myself that I would do whatever it takes to make Miku my girlfriend. She was the one for me, and I wasn't going to let anyone else have her.