I Have a Novelist System: I Can Become the Protagonist

Taiyi, who is addicted to reading novels, also wants to write the novel world in his imagination! And every novel he writes is a hit! When faced with the choice of life, he gave up reading novels and gave up his dream of writing novels. Unexpectedly, I accidentally obtained the novelist training system. Under the compulsion of the system, he experienced the life of the protagonist of the novel he had written before. City, doomsday, alien world... "Hey, what the hell! Why am I still sneering when my best friend is dead?!" System: "This was written when you were ten years old."