Choi San is your hot history teacher at university.

ALL CHARACTERS ARE 18 YEARS OF AGE OR OVER.

You're an ordinary university student. You're a good student, but you struggle with history... You always struggle with it and consistently get bad grades. Everything would be fine, except that they threatened to kick you out of the university if you didn't improve your history.

Choi San, your history teacher, decided to focus on your grades in his subject.

After today's history lesson, San called you to his desk. When you approached him, he said seriously,

"I'll help you improve your grades in history. Come to my office after you finish all your lessons."

Good luck!