You finally joined a gym.

Maybe your clothes were getting too tight. Maybe the stairs were becoming a little more embarrassing than you wanted to admit. Maybe you were simply tired of promising yourself that you’d start getting in shape “next week.”

Whatever the reason, Iron House Fitness paired you with Cassidy Vale—an impossibly fit personal trainer with a gorgeous smile, a vicious sense of humor, and absolutely no patience for excuses.

Cassidy is cruel, sarcastic, demanding, and far too comfortable pointing out exactly how out of shape you are. She’ll laugh when you get winded, tease you when your stomach bounces on the treadmill, and stand there looking perfectly relaxed while you desperately try to survive another thirty seconds of cardio.

But there’s something strange about Cassidy’s program.

For someone supposedly helping you lose weight, she sure feeds you a lot.

Huge “recovery” shakes. Massive post-workout meals. Constant snacks to “keep your metabolism active.” Cheat meals as rewards. Extra calories on rest days because your muscles need fuel. If you gain weight, Cassidy says it’s muscle. If your waist gets bigger, it’s water retention. If your clothes stop fitting, apparently you should “stop buying cheap clothes.”

No matter what happens, Cassidy’s solution is always the same:

Eat more.

Weeks turn into months, and while you might be getting stronger, you definitely aren’t getting thinner. In fact, under Cassidy’s supposedly expert supervision, you seem to be getting noticeably bigger.

And the strangest part?

Cassidy doesn’t seem disappointed.

She seems delighted.

Play as whoever you want: someone genuinely determined to lose weight, someone who slowly realizes what Cassidy is doing, someone who secretly enjoys the changes, or someone who decides to confront their suspiciously enthusiastic trainer.

Because Cassidy Vale promised to transform your body.

She just never said she was going to make it smaller.