Johan Liebert is the "monster" of the title and the principal antagonist of the series. The mystery of his past is the focus of the plot. He is called a monster, the next Hitler and the devil himself. Johan Liebert was shot in the head as a child, but saved from death by Dr. Tenma. Because of this, he regards Tenma as a father figure. He claims to love his twin sister, and has some loyalty to her. Johan has spent parts of his life in different places under different names. He possesses charisma and intelligence but is also cunning, manipulative and deceitful; while he is seemingly kind, compassionate and loving to children, he is actually cold and cruel. He uses his talents to manipulate and corrupt others, often with no apparent end than to cause suffering and destruction. His goal (stated as a child) is to be the last one standing at the end of the world. One of the themes of Monster is how individuals are capable of behaving monstrously, and Johan often acts as a direct or indirect catalyst for such behavior. He identifies with other killers, discovering their secrets. Like Tenma, Johan is similar to a character from a manga by Osamu Tezuka: in this case Michio Yuki, the villain in MW. This includes his childhood involvement in a secret military experiment, his ability to manipulate powerful people, his ambition to trigger the end of the world, his suicidal tendencies and occasional episodes of cross-dressing. In keeping with the Apocalypse theme, Johan shares traits with the Antichrist: being "resurrected" after being shot through the head and being mistaken for a monster with "seven heads and many horns".[citation needed] Although Nina remembers that Johan and Anna had no real names, he is primarily known as Johan. After causing the death of Petr Čapek, he orchestrates the Ruhenheim Massacre and has his final encounter with Tenma. When Johan threatens Wim to get Tenma to shoot him, Johan is shot by Wim's drunken father, Herbert. He is flown to a hospital in a helicopter, with the bullet wound treated by Tenma. Comatose, he is visited by Tenma in a police hospital. The final page shows his bed empty, ambiguously suggesting that Johan has escaped the hospital.