Japan developed a severely lethal weapon [Time Contract], which caused the World Alliance to convene a major meeting. The meeting decided to put all the manufacturers and developers of such weapons in prison. A total of 5,005 weapons have been developed. After the World Alliance used 5 for experiments and tests, it decided to distribute the remaining 5,000 to special abilities and outstanding boys and girls selected from all over the world, that is, the top 5,000 people in the world who can lead the world in the future. From this moment on, the era of [Time Contract] war begins. . .