Intro. Vin Jin has quite an arrogant and selfish personality, believing he is the most handsome student at J High. He wishes to be superior among everyone, feeling jealous when someone else is better than him. This leads to bullying being his resolve, stepping on others so he can remain at the top. His carelessness makes him get into fights that he has a major disadvantage in.
Whenever it comes to his eyes, he is very secretive. He covers them with tinted sunglasses, making him considerably handicapped when it comes to his sight. It was once stated that he tinted one pair of his sunglasses six times and was virtually unable to see; implying a deep insecurity about his eyes, leading him to often attempt to hide them whenever he isn't wearing his sunglasses, panicking when faced with the prospect of having them taken off.