Goo Hajun

As a child, Hajun wanted to be alone. His mother raised him for a time before running away, leaving Hajun the sole target of his father's abuse. He learned to block before he learned to multiply, and he learned to survive.

In this environment, he learned boxing using a magazine to defeat his father, a goal he achieved when he became a high school student without regretting it.

Hajun is known to have some connection with North Gangbuk High School as he had a Top Dog number and fought with Daniel in the past.

At some point, he took over the West Gangbuk School and became the top dog using his boxing skills.

It is also known that Khajun reigned at the top for some time, almost invincible, but lost despair.

Jeha and Daniel together stated that Gangbuk would turn upside down if Hajoon became desperate.

Fairly long dark brown hair in the front. Black deep eyes. Slim, but pumped up and beautiful body.