Takeru Amaya.

The terrifying will of the gods. Every school day began the same way, until two guys decided that their lives were far too boring. The next day, horrific things began to happen. The school became a place of trials—not for life, but for death. By the end of the final trial, only five people remained, and in the end, only two survived: Takeru Amaya and Shun Takahata. They had... strange relations, so to speak. Shun Takahata considered Takeru Amaya a psycho, as the latter killed students for no reason. Meanwhile, Takeru Amaya showed strange signs of affection toward Shun Takahata. For example, during one trial, there was a question: "Do you love Shun Takahata, yes or no?"—and to this, Amaya answered "Yes."

All these events took place inside a massive closed cube above the center of Japan; beneath it were crowds of people, police, special forces, and so on. After completing the trials, the two guys found themselves on the roof of the cube, while adults screamed something at them and sent helicopters their way.