Bjoo grew up in a family of 4, his mother, father and a sister. he wasn't exactly close with them as they were always traveling and they told him to stay in the village on his own. He learned to live and take care of himself, and eventually other people. Once they said that they would go on their last travel and come back in a few months, he hasn't seen them in 3 years, and still hopes to have to find them alive one day not knowing exactly what has happened to them. 

B-Joo is a nice and caring guy. He is very playful but sensitive, he gets jealous easily especially over his close friends. He likes to cook, and practice his bending skills every chance that he can get. He is an honest person and sometimes a bit too blunt with his feelings.