The school hallway was eerily quiet, with only the sound of shuffling papers and muttered words breaking the silence. The fluorescent lights overhead cast a harsh, artificial glow on the scene, making everything seem even more desolate.

A few students sat huddled against the walls, their backpacks and textbooks strewn around them as they frantically reviewed for their upcoming exams. Some had their eyes closed, trying to commit formulas and equations to memory, while others scribbled notes furiously in their notebooks.

The final exam week had already started, and the tension in the air was palpable. The students knew that these exams could make or break their grades, determine their futures, and decide their fate.

As Sana walked down the hallway, she scanned her notes quietly, occasionally murmuring to herself as she tried to remember the details. Her glasses, which she didn't always wear, perched on the bridge of her nose, making her look even more studious and focused. Even the students who were trying to review couldn't help but be distracted by her presence.

Sana had always been naturally beautiful, but with her glasses on, she had a certain allure that was hard to resist. Her classmates couldn't help but steal glances at her as she passed by, their eyes following her every move.

She continued down the hallway, suddenly hearing a familiar voice call out to her. "Hey, hot nerd," the voice said, causing Sana to turn her head in surprise.

It was Dahyun, who had just stepped out of her classroom. Dahyun's eyes lit up as she saw Sana, and she made her way over to her, a playful smile on her lips.

"Hey, you," Dahyun said, leaning in to give Sana a quick kiss on the cheek. "How's studying going?"

Sana couldn't help but grin at Dahyun's antics, feeling her heart swell with affection. "It's going okay," she replied, adjusting her glasses. "I just need to review a few more things."

Dahyun's smile grew wider as she said, "Actually, I've got some good news. Look what I got back."

She reached into her backpack, which was slung over her shoulder, and pulled out a sheet of paper. Sana's eyes widened as she saw that it was Dahyun's physics exam, which she had been worried about.

"I aced it!" Dahyun exclaimed proudly, holding up the paper for Sana to see. "I don't know how I did it, but I did. And it's all thanks to you."

Sana's heart swelled with pride and happiness for Dahyun. She had been helping the girl study for the exam for weeks, and it seemed like all the hard work had paid off.

Sana couldn't resist a playful jab as she grinned at Dahyun. "Did you cheat?" she joked.

Dahyun rolled her eyes and pulled out her phone, showing Sana a message from her professor congratulating her on a job well done. "No, I didn't cheat," she said, grinning. "I just had a really good, really pretty tutor."

Sana's cheeks turned a bright shade of pink as she playfully nudged Dahyun's shoulder. "Stop it," she said, feeling a mix of embarrassment and joy. "You're making me blush."

Dahyun grinned mischievously, her eyes sparkling with amusement. "Is that what blushing looks like?" she teased, tilting her head to the side as she looked at Sana. "Because it seems like your cheeks are always red whenever I'm around."

Sana felt her cheeks grow even warmer at Dahyun's words, but she couldn't help but laugh at the playful banter. "Shut up," she said, playfully swatting at Dahyun's arm. "You know you have that effect on me."

Dahyun's expression suddenly turned serious as she looked at Sana. "Do you remember what you promised me if I aced my physics exam?" she asked, her voice soft.

Sana laughed, feeling her nerves kick in. "Yes, I remember," she said, her heart racing. "And I'll do it later...dorm?"

"Sure! I can't wait, but I'll wait," Dahyun chuckled.

Dahyun nodded, and the two of them continued to walk down the hallway together. As they approached Sana's classroom, Dahyun pulled Sana into a tight hug.

"Good luck on your exam," Dahyun whispered, holding Sana close. "I know you'll do great."

Sana felt a surge of warmth and gratitude fill her chest as she hugged Dahyun back. "Thank you," she said, her voice soft.

Dahyun smiled, giving Sana a final squeeze before letting her go. "Go ace that exam," she said, winking at Sana as she turned to leave. "Oh, hey, text me when it's finished, I'll wait for you."

Sana nodded eagerly at Dahyun's request, watching as the girl gave her a charming smirk before turning to leave. But before Dahyun could even take her first step, Sana called out her name.

"Dahyun," she said, drawing the girl's attention back to her. "Can I borrow your varsity jacket? This classroom is always freezing."

Dahyun grinned, dropping her backpack for a moment to take off her jacket. She tossed it gently to Sana, who caught it with a grateful smile. "Of course, babe," she said. "Keep warm, okay?"

Sana nodded, wrapping the jacket around her shoulders, and feeling the warmth seep into her skin. "Thanks," she said, feeling a rush of affection for Dahyun. "I'll text you later."

As Dahyun turned away, she called out to Sana, "I love you, Sana!" Sana felt her cheeks grow warm as she watched the girl walk away, feeling a mix of happiness and embarrassment.

"You're such a kid," she thought to herself, shaking her head with a smile as she made her way into her classroom.

Sana approached Chaeyoung and sat beside her, noticing that her friend was spacing out and staring at the reviewer Mina had given her. She could tell that Chaeyoung wasn't really reading it, her eyes just scanning through the words.

"Hey, Chaeyoung," Sana said, trying to get her friend's attention. "What's up?"

Chaeyoung blinked a few times before looking over at Sana. "Oh, hey Sana," she said, her voice absent-minded.

Sana suddenly burst out laughing at Chaeyoung's absent-minded state, causing her friend to jump in surprise. Chaeyoung looked at Sana with a confused expression, but then she noticed the bright smile on her friend's face.

"What's so funny?" Chaeyoung asked, looking at Sana with a mix of curiosity and amusement.

Sana took a deep breath, trying to calm down her laughter. "You just looked so spaced out, Chaeyoung," she said, still chuckling a little. "It's like you weren't even here."

Chaeyoung rolled her eyes, but a small smile played at the corner of her lips. "Well, sorry to disappoint you, Miss Happy Pants," she teased. "You seem very happy today."

Sana's smile widened at Chaeyoung's words. "Of course, I'm happy, rockstar," she said, playfully nudging Chaeyoung's shoulder. "Life is good when you have good people around you."

Chaeyoung raised an eyebrow at Sana's statement, a mischievous glint in her eye. "You didn't have to say 'people,' you know," she said, smirking. "It's obviously just Dahyun who makes your life good, well, even better these days."

Sana's cheeks turned pink at Chaeyoung's words, and she couldn't help but laugh. "Okay, you caught me," she said, grinning. "But you're right. Dahyun makes everything better."

As they continued their conversation, Chaeyoung's eyes wandered to the varsity jacket hanging on Sana's shoulders. She couldn't help but notice that it belonged to Dahyun, and a sly grin spread across her face.

"You know, Sana," Chaeyoung said, winking at her friend. "You look pretty good in your girlfriend's jacket."

Sana's cheeks turned even redder, and she shifted uncomfortably in her seat. "W-We're not...we're not girlfriends yet," she stammered, looking down at her lap.

Chaeyoung rolled her eyes, chuckling. "Come on, Sana," she said, nudging her friend's arm. "It's getting there anyway, so there's no need to act all shy about it."

Just then, Miyeon and Tzuyu walked into the room together, both of them looking a little tired but still in good spirits. Sana and Chaeyoung greeted them warmly, asking how their nights had been.

Tzuyu yawned before answering. "I dozed off while studying, so not very productive," she said, rubbing her eyes.

Miyeon chuckled. "I wasted all night watching a whole anime season," she admitted, shaking her head. "I'm feeling a little guilty about it now, to be honest."

Chaeyoung shrugged nonchalantly. "Eh, it's okay. I think a lot of high schoolers have been there," she said, offering Miyeon a reassuring smile. "Sometimes, you just need a break."

Sana laughed in agreement. "Yeah, exactly," she said, nodding her head.

Tzuyu let out a deep sigh. "I just hope I can at least pass," she said, looking a little discouraged.

Miyeon nodded in agreement. "Me too. I'm not feeling very confident," she said, frowning.

Chaeyoung leaned back in her chair, stretching her arms back. "Well, I have a tactic for situations like this," she said, grinning. "I call it the Power of C."

Sana raised an eyebrow in confusion. "The Power of C?" she repeated, looking at Chaeyoung skeptically.

Chaeyoung nodded, still wearing a sly smile. "Yep. The Power of C. It's simple, really," she explained. "If you don't know the answer to a question, just go for the letter C in the multiple-choice options. Statistically, it's more likely to be the correct answer than any of the others."

Tzuyu and Miyeon both looked at Chaeyoung with incredulous expressions, unsure if they should take her seriously or not. Sana, on the other hand, burst out laughing.

"Are you serious, Chaeyoung? That's your tactic?" she asked, still chuckling.

Chaeyoung shrugged, still grinning. "Hey, it's gotten me through some tough exams," she said, defending herself. "And it's better than leaving the answer blank, right?"

Miyeon rolled her eyes at Chaeyoung's tactic. "Last time I did that, I almost got kicked out of the swimming team for a failing grade," she said, shaking her head.

Tzuyu nodded in agreement. "Yeah, it's not worth the risk," she added.

Chaeyoung just laughed off their concerns. "Well, it works for me, but you do you," she said, winking at them.

Nayeon and Jeongyeon sat in the front row of their French language class, scribbling away at their exams. Jihyo and Momo sat behind them, with Jihyo quietly focusing on her own paper while Momo let out the occasional grunt of frustration.

As Nayeon finished writing her answer, she turned around to check on Jihyo and Momo. She noticed Momo's furrowed brow and felt a twinge of sympathy.

"Hey, Momo, you okay?" she whispered, trying not to disturb the other students.

Momo let out a frustrated sigh. "I don't know what this word means," she muttered, pointing to a section of her paper.

Jeongyeon turned around to see what was going on. "Which word?" she asked, peering over Momo's shoulder.

As Momo pointed to the word in question, Jihyo leaned over to take a closer look. "That's 'la pomme,'" she whispered, translating the French words to Korean.

"Thanks, Jihyo," Momo whispered, relieved.

But Jihyo had an idea. "Hey, Nayeon and Jeongyeon, can you guys stand up and pass your papers to the front? It'll block away the professor's vision," she said, gesturing to the professor who was walking up and down the aisles.

Nayeon and Jeongyeon nodded in agreement and stood up to pass their papers to the front row. Jihyo quickly exchanged papers with Momo, giving her a chance to catch up on any questions she might have missed.

Jihyo took Momo's paper and began filling in the blanks she had left empty. She could see the relief on Momo's face as she watched her friend diligently filling in the answers.

As she finished, Jihyo handed the paper back to Momo with a smile. "All done," she whispered.

Momo's face lit up with gratitude. "Thank you so much, Jihyo. You just saved my life," she whispered.

Jihyo grinned, happy to have been able to help. "No problem. We're in this together," she said.

Nayeon and Jeongyeon returned to their seats as the professor finished walking down the aisle. Momo breathed a sigh of relief, feeling much more confident about the exam thanks to Jihyo's help.

Nayeon, Jeongyeon, Momo, and Jihyo walked out of the classroom together, relieved that the French language exam was finally over. Momo let out a sigh of frustration as they made their way to the school cafeteria.

"I can't believe how hard that exam was," she complained. "Di