The protagonist has an unknown cancer and is about to die in his prime years. The moment his eyelids fell, there was a crisp sound in his ear, "Ding~, the host has been detected, the system is being bound,,, the binding is completed." The protagonist wakes up and has arrived in a strange world, seemingly in a savage growth mode. He counterattacks all the way, experiencing dangerous secret realms, cruel and bloody battlefields, and the baptism of various conspiracies and conspiracies, and finally ascends. After recovering, I realized that I had woken up from the bed. After I regained consciousness, I realized that I had traveled to the world inside my own body, and had won one virus battle after another with the cells of my body, completed my self-salvation, and since then I have become more caring about my body. Countless great and selfless cells work hard to form themselves. Everyone is prosperous and suffers. As their representative, "I" must live a beautiful and meaningful life for the rest of my life to make the efforts of countless cells worth it.