While Jūgo initially appeared quite bloodthirsty, Karin noted that this was only common behavior when he was enraged; Jūgo himself didn't want to kill anyone and in reality, he is a very gentle person. His compassionate nature extends to various animals, able to instantly gain their trust. Even more, he dislikes anyone who would hurt animals. His fits of rage are random and uncontrollable, and thus are the reason why he willingly chooses to remain confined where he won't bring harm to anyone.