The morning after the final exam felt like pure freedom. Y/N had planned to sleep the entire day and night, exhausted from the endless studying, but instead, she was wide awake and bursting with energy. She had done it—survived Taehyung's ruthless study sessions, the torturous math drills that had reduced her to tears, and the never-ending corrections he forced her to make until she got every problem right. And now? Now it was time for payback.
Hopping on her feet with excitement, she made her way to Jungkook's house. She grinned widely as she greeted the guards at the gate, her bubbly energy contagious. The morning breeze was cool against her face, adding to her excitement. She wasn't just here to see Jungkook—no, her main mission was to find her "beloved" Taehyung sir and show off her post-exam freedom.
As she reached the mansion, she peered through the glass walls of the gym area and spotted her target. There he was—Kim Taehyung, running on the treadmill, sweat glistening on his skin, music playing in the background, all focused and serious. In the corner, Jimin was doing pull-ups, looking equally immersed in his workout.
A mischievous smile crept onto Y/N's face.
Without a second thought, she sprinted toward the glass, too excited to care about subtlety. THUD! She slammed into the glass wall, her entire body plastered against it like a cartoon character. Her palms stuck to the glass, her nose flattened against the surface, and her wide eyes stared directly at Taehyung.
The loud thud made Taehyung jump slightly, his concentration snapping as he turned to see the 'creature' that had just crash-landed onto the glass right in front of him.
"YAH!" Taehyung yelled, startled.
In the background, Jimin, who had also been caught off guard, looked over. The moment he realized it was Y/N, his shock melted into laughter. He dropped down from the pull-up bar, clutching his stomach as he cackled.
"Y/N, YOU'RE THE BEST!" Jimin howled, practically rolling on the floor. "Oh my god, your face—"
Y/N peeled herself off the glass, unfazed, and beamed at them. "Sirrrr~" she sang, her voice dripping with exaggerated sweetness. "I did everything right in the exam! No mistakes! Not even one!"
Taehyung sighed, running a hand through his damp hair as he grabbed a towel. "Is this how you announce your results? By giving me a heart attack?" he grumbled, but there was a tiny hint of amusement in his voice.
Y/N, unbothered, skipped inside the gym and threw her arms up. "Yes! And guess what? No more studying! I am freeee!"
Jimin snorted. "Taehyung, she's way too hyper for this early in the morning."
Taehyung shook his head, looking at the excited menace in front of him. "Great. And whose problem is that?"
Jimin grinned. "Yours."
But Y/N was too busy to pay attention, her curiosity completely fixated on the gym equipment. Eyes sparkling with interest, she wandered around before finally grabbing a dumbbell, attempting to lift it with both hands.
"Y/N, drop that," Taehyung's firm voice came from behind her.
She turned her head slightly, a playful glint in her eyes. "Sir, don't underestimate me. This is so light! I can even lift it with my left hand."
Taehyung sighed, already exhausted just by dealing with her antics. He glanced at Jimin, who only shrugged, suppressing a smirk. "Yes, yes, you can even lift it with your finger. Now give it to me," Taehyung said, moving toward her.
But instead of listening, Y/N started doing reps with the dumbbell, grinning in triumph. When Taehyung finally took it from her hands with ease, she pouted, watching as he started his own reps.

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Troublemaker
FanfictionTaehyung, a strict but caring math teacher, faces the challenge of managing his playful and rebellious students, Y/N and Jungkook. As he balances discipline with understanding, Taehyung's nurturing side reveals itself, showing how deeply he cares fo...