En el pasado eran hombres que acompañaban a las mujeres a los eventos sociales, hoy en día es un título que se da a los hombres atractivos con estilo e impacto en la moda.
An It Boy is a man who causes a big impact on the public waking up inspiration on them. It can have different adjectives and characteristics that defines the person who is named It Boy, an example is Choi Yeonjun who is the 4th Gen It Boy.
The 4TH Gen in his title refers to the impact that he has on Gen Z inspiring a lot of teenagers and young people with his style.