The protagonist has an unknown form of cancer and is about to die in the prime of his life. Just as his eyelids fall shut, a clear chime rings in his ears: Ding! Host detected. System binding... Binding complete. When the protagonist wakes, he's in a strange world that seems to follow a brutal survival-of-the-fittest rule. He rises against the odds, weathering perilous secret realms, brutal and bloody battlefields, and every manner of scheme and plot, until he finally ascends to immortality. After ascending, he discovers that he has actually woken up in his own bed. Once he comes to his senses, he realizes that he transmigrated into the world inside his own body, where he and his cells fought one virus war after another and achieved self-redemption. From then on, he cherishes his body even more. Countless extraordinary, selfless cells work tirelessly to make him who he is. They all prosper together and suffer together. As their representative, “I” must make the rest of my life beautiful and meaningful, so that the efforts of those countless cells are worthwhile.
