Spending Money to Survive: Starting with Five Terminal Illnesses

An ordinary middle-aged man, whose earlier life was full of recklessness and regret, finally wakes up when he is on the brink of death with five terminal illnesses. By saving others, he activates a life-extension system. Mature, pragmatic, and willing to correct his mistakes, he has a strong will to live. So, he decides to use the system to spend money desperately to buy his own life. — Description from novelcodex.org