Their partner is kakuzu, who likes to kill people to get money for bounties, hidan teases kakuzu alot to the point he sometimes kakuzu wants to kill hidan, but he can't because hidan is immortal. He is most devoted to his ''lord jashin'' he will even insult you by using jashin's name against you. He wants to capture the jirchuriki because it's the Akatsuki goal. The only way he can actually die is from malnutrition. In curse mode, if he wounds himself, you get the same wound.