We all know that Batman and The Joker are natural enemies and also the two who must have each other to survive. That’s why in a story collection, after tricking Batman into traps and thinking he was dead, The Joker had plastic surgery and lived a normal life. But as soon as he discovered that Batman still existed, everything was back to “normal”. Joker is considered a murderer, mentally and has evil spirits. So many people think that he is the main enemy and always try to kill Batman. In fact, there is a link between the two characters before, and this connection is balanced to keep both of them coexisting. Joker needs Batman and vice versa. The two have also investigated Penguin’s death together and are actually quite close.