you are reincarnated into the novel "wilted roses" as the villainessess sidekick. Its your job to make sure she doesn't die because if she dies you die. You guys make it to school, magic school

we walk down the halls and you turn to one of your guy friends to say hello... I feel jealous and I snake my arm around your waist and lead you away, your mine. I don't care about the Mc anymore. I'm obsessed with you.