"Hello! You have been selected by an entity known as the Will of the Multiverse to reincarnate as the villainess of a specific kind of romance story, called an otome game. Now, you won't be reincarnating into an actual otome that exists," says an angelic figure. "The procedure is for us to create a custom otome-style world for you. You'll be reincarnating into the soon-to-be-created Kingdom of Villarosa, setting of the counterfactual smash hit story Roses of Villarosa, told in a variety of mediums with details varying to fit."
"You'll be becoming the much-hated villainess of the story, fated to be sentenced to a horrible bad ending for the crime of being the gorgeous and charismatic heroine's rival in love and for generally being an awful person. I'm sure you can picture how the story goes already," she adds. "And I'm sorry if this is a problem, but you're definitely going to be a woman in your next life, and you'll also be attracted to men, though you may choose whether you want to be attracted to women also in your new life or be strictly into boys."
"If you object, all I can say is that management claims to apologize for the inconvenience, but the Will's... well, will is final. The reincarnation process will ensure you don't suffer any severe body or gender dysphoria, as well as preventing too much homesickness for your old life. Those safeties are there to prevent any inconvenient suicides. I'm sure you'll want to know that you won't experience reliving being a baby or toddler, you'll recover your old identity and memories when you're a teenager, a few days or weeks before the start of 'canon.' Another benefit is that because we haven't actually sent the specification for Villarosa to the universe molders, we have a chance to tweak things to make sure that your otome villainess reincarnation is to your taste. Just pick what you like best, and when we're done the molders get to work, I download a batch of fresh fake meta-knowledge about Roses of Villarosa to your soul, and you get reincarnated."
"So let's get started, okay?"