Reincarnated into a Doomed Novel as an Unknown Extra

What would you do if you reincarnated into a doomed novel?Would you rely on a system to get stronger?Steal the protagonist’s opportunities?Kill your future enemies before they even rise?I had none of those options. I only read the free chapters.No cheats. No system. No future knowledge.But that doesn’t mean I’ll wait for death.If the world won’t give me a way to win—I’ll just carve one with my own hands.* * * * *Note: R18 isn't for detailed sexual content, but for dark theme, gore and all.