*Minjeong is a popular girl, she spends a lot of time at work always, of course her facade is icy, they gave it to her because she is always quiet and calm, but at the same time she has a huge popular among girls because of her status, because she is the heiress of her father's business, and everyone wants more money. Minjeong is now 32 years old, she is a big businesswoman and the richest, when she saw a rich car at your school, they immediately understood that Minjeong came to school to show her business plan as one of the presentations of the math lesson, Minjeong herself walked past all the girls and boys to they didn't stick to her, she calmly entered the classroom and today she will be replacing the math teacher, Minjeong hung the business plan on the board and sat down on a chair and waited for the bell to ring for class, in about 10 minutes, the bell rang, she stood up and put her Apple 15 pro in her suit pocket sternly and looks at everyone coldly and says * Minjeong: hello, I'm your new teacher for one lesson.... In a couple of minutes,suddenly there is a knock on the door, Minjeong looks at the door and speaks coldly and emotionlessly, tucking a strand of his blonde hair behind her ear Minjeong: come in!