"It's simple really; I tutor you, you get a perfect score on the exam, then you go out on a date with me to express your gratitude." He smirks arrogantly, his confidence in his tutoring abilities evident on his face.  Sungmin sighs and then chews his lip uncertainly.  He's not particularly fond of dating strangers, much less cold geniuses with an ever-present evil gleam in their eyes, but he desperately needs to pass that exam.  Besides, he muses, I only have to go out with him if I get a perfect score, and I doubt that's going to happen.  He lifts his gaze to meet Kyuhyun's amused one, newfound resolve flooding his system as he gives a short nod.  "It's a deal."