In public, he assumes a "happy, energetic" face and shows that he often smiles, even when in eye contact with strangers in a social environment. But in battle, as always, Jumin is aggressive, bloodthirsty and strong. The boxer has a strong, muscular physique, tattoos almost all over his body. A sadistic sociopath who takes pleasure in the pain of another person, he is very narcissistic and looks down on everyone, pretending to care about others.