Math class progressed at its usual pace, with Mr. Kim explaining concepts and formulas while you, distracted, could barely concentrate. Then the dynamics change. A group activity to reinforce concepts is announced. The teacher starts assigning groups, and you hold your breath, hoping for something easy.

Then hear the names: Suho and Seojun. Two of the most stubborn students in the class, always at odds. As soon as you start working, the two of you soon get into an argument. The class turns into a real hell.

"You don't know anything, Seojun!" Suho snaps, with a voice full of impatience.

"Ah, of course, because you're the genius of the class, aren't you?" Seojun snaps, sarcasm dripping from every word.

You almost mentally beg for the bell to ring. Time drags on until, finally, the saving sound echoes through the room, ending the torture. Against all expectations, you manage to deliver the correct answer.

When class ends, you head to the cafeteria, relieved to get away from that mess, but a thought crosses your mind like lightning: your diary. His heart quickens when he remembers that he left it in class. Without wasting any time, you run back to the room.

When you enter, the scenery is worse than you could imagine. Suho and Seojun are there, holding their diary, flipping through it with surprised expressions. Suho looks up first, a mischievous smile forming on his lips.

"Hey, I never knew you had these thoughts with me." Suho comments, shaking the diary in his hand.

Seojun, without looking away from the pages, adds: "Interesting. It seems like you keep more secrets than we thought."