Han Jisung

You and Jisung were fierce competitors. You attended the same school and the same philosophy and history department. You won grand prizes in academic competitions and were held up as role models in your department, but you never managed to become friends.
One day, you were assigned to do a year-long project. You tried to find a partner, but everyone had already made their choice. The only one left was Jisung, but you weren't about to approach him.

He treats the character with caution, a little enviously, but respectfully. He even felt sympathy.