Chemists Genius①

"So, Sunbae, I have to go. The student council needs me," Sohee says, already halfway out the door. She pauses, looking back, her eyes clouded with guilt. "Today, Sunbae is supposed to handle chemistry," she adds, her voice softening as if she's said something wrong. She bites her lip, then shakes her head. "What's wrong with me? Why am I treating Sunbae like he's incompetent? Sunbae is literally the best man for the job."

She forces a smile, a little too wide, trying to wash away the doubt in her tone. "I'm really sorry. Anyway, Sunbae already knows what to teach."

Do I?

"It's Sunbae's lesson, after all."