How I Survive Being Transmigrated into a R-19 Novel

I’ve been transmigrated into a frustrating fantasy isekai novel that ended with a completely unsatisfying conclusion. And to top it all off, I’m stuck as the potion-slinging pack mule for the hero’s party. Since I’m here, I might as well carve out a quiet life for myself in this messed-up world. I’ll make those hero party jerks regret their actions while keeping my distance as much as possible.