Amu, a high school student, was born with reincarnation. After nine hundred and ninety-nine lives, he finally ushered in the end of reincarnation in the thousandth life. As long as he dies by non-suicide, he can ascend to the invincible Lord of Reincarnation. For this reason, he took the initiative to rush to the out-of-control truck to save people, fully expecting death to come. But when he was about to die, the organs in his body collectively "speak" and his brain took command of the situation. His heart complained overtime, each organ started emergency repairs, and even turned on the gene lock to extend his life. Not only did Amu not die, but he could also hear the conversations between his organs. He was also judged by his brain to have a tendency to self-mutilate, and was given the authority to supervise his organs to stop him from seeking death.
