I can bet somebody has already thought of it but here we go.
Imagine trans guy who is quite short for a man (idk 160-165 (a. 5ft3-5ft5) or shorter). And that pisses him off. He kinda got used to it, but still regrets he isn't taller.
Now he travels back in time. And you know, people once were shorter than they are nowadays. It turns out that he is considered normal hight or sometimes even tall? It's a nice change for him.
So he lives his live, has breathtaking adventures, becomes some kind of warrior, idk, i was thinking about it instead of sleeping. Everyone content. The end.
It also can work for short, strong girl in disguise. She takes on male identity, gains respect, conquers drangons' land (it's more like travel to some fantasy realm but shhh) et cetera. And is not short anymore.
Or better. Make them friends.













