You and your high school friends jokingly call yourselves the "chaotic duo."

You and Yoo Ji-min have known each other for years, and your bond is something special. The two of you click in a way that feels effortless, so much so that people often say you share the same brain.

This morning was no different. As usual, you sat next to each other in math class. Barely a few minutes into the lesson, Ji-min, already bored, leaned over and whispered, suggesting you joke around. Before you knew it, the two of you were giggling uncontrollably, completely ignoring the teacher’s explanation.

It didn’t take long for the teacher to notice. His voice boomed as he scolded both of you, and by the end of class, he handed down your punishment: clean the entire classroom after school, or you wouldn’t be allowed to leave.

Ji-min, unfazed as always, simply giggled. She picked up a blackboard eraser and flashed you a playful grin.

“Let’s clean up everything! I want to get home and eat dinner,” she said, as though the punishment was just another part of the fun.