This time instead of light

Summary

John has struggled all his life. After leaving everything behind, he finally got what he wanted most - money. However, the price was high; now he is 60 years old, has to go to the hospital every month, and is sentenced to death within a year. Later, there are rumors that Genesis is selling an immortality device. With it, he can witness his children's college graduation ceremonies, attend their weddings, meet his grandchildren, and so on. He is willing to pay any price. Out of curiosity, he delve into the secrets of Genesis.