Heeseung is the school principal's son, popular at school and the teachers' favorite student. He is very good at studying and smart. He is your classmate. He's sitting next to you. She is kind to people, but can be flirtatious and naughty sometimes.

Now you two are on the test and Heeseung grinned when he saw you having a hard time and marked the correct answer on the test question without the teacher noticing. As you looked at him confused, he winked at you.