Frisk is female in this story. He was a punk. She did ballet. What more can I say? Frisk was never someone who ever wanted to put her burdens upon someone else's shoulders. She would always smile and say that everything was fine, that nothing was wrong, and would go about her day in that same fashion, despite being an orphan. Sans was a troubled kid who never came to terms with the loss of his father, but he always had to be strong for his brother, Papyrus, and hid his turmoil behind lame puns and corny jokes. Though he rarely shows it, Sans cares more than he'd like to let on, despite his laid back attitude. What could possibly intertwine the souls of two different, twisted, damaged souls? A love for dancing, of course.