If you need it explained, GT stands for giant/tiny, so it's just interaction between giants, normal and tiny people, and it can go well with a lot of genres.
Just so you know, if we do this, I'm better at playing the tiny. And here's a one of my characters.
Name: Alina Smithe
Appearance: She's got bright red hair and green eyes. She wears a grey plain shirt, black jeans and converse and a black beanie.
Personality: Cynical, Pessimistic, Sarcastic, Shy