How about this.
She’s a 12 year old girl or so, right? Japanese, so obviously small and light. You’re on the top of a building, a parking lot. Likely several stories up.
See where I’m going?
Just yeet her off the fuckin garage.
And if I’m mistaken and the garage isn’t a garage and they’re on the ground, then all’s well anyways because this blackmail shit is weak as fuck.