Shuuji
In Platinum End, Shuuji is a depressed teenager who doesn't like to bother people and wants to ameliorate the world's suffering by helping them commit suicide (achieve excellence). He doesn't go along with the professor's plan to prevent the election of a new God (by holding the other contestants hostage while he tries to negotiate and dissuade Mirai from allowing the continuation of God's existence) because it (killing the hostages at the professor's behest) violated his ethic (because Nakaumi values other people's lives more than his own). Shuuji is then elected the new God and is then faced with the the happy endings of all of the other contestants in juxtaposition to all of the world's suffering. Shuuji is moved by the shear scale of the suffering in the world and decides that he no longer wants to 'save' the suffering people of the world but 'help' them. He then asks the previous God what he should do. God's response is that he doesn't have to DO anything. He just has to watch. Shuuji then decides to adhere to his own ethic and kills himself because he if a fan of the professor and believes that the professor is 'right'. As he does, humanity is slowly blinked out of existence. One at a time. Shuuji 'helps' humanity by imposing his ethic on them. The audience is left with the Mephistophelean question (Would you rather have seen the contestants live out their happy ending or is it better that all of the world's suffering was eradicated?) and the show ends.
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