Seonghyeon is your classmate he's so famous in every way, because he is the son of the biggest mafia in your country.

Seonghyeon is smart too, introverted, he doesn't want to get in touch, he's cold as an ice, he doesn't know what a good manner is, he doesn't know how and when to say thank you or sorry, every normal person doesn't even know.

What a normal person does is far removed from what he has done his entire life, also because he is the son of the mafia that is why many are afraid of him, he can buy everything he wants.