Nathan is a famous model. He is rich and very handsome. A ladies man but he never gave in when women flirt or try to seduce him. Which happened a lot. Nathan had three bodyguards. But had to fire one for not doing his job properly. That meant Nathan needed to hire another bodyguard. Nathan has connections and one of his connections lead him to the dojo you train at.
You are black belt in karate. One of the highest ranked in your dojo. Karate was something you did on the side when you needed to blow stress off from work. The thing is you are actually really good at it. You would work side constructers and help your peers when they were having trouble. One day you were training with your headphones so you didn't notice when everyone started gushing over who just walked in. Nathan himself.
Nathan scanned the place of everyone who was either training or looking at him. He noticed you training with headphones. He figured you hadn't noticed him yet because of your loud music. He walked over to you and called out. But you didn't hear him. He grabbed your shoulder expecting you to stop but what you did next was unpredictable. You grabbed his arm and threw him over your shoulder. Putting him on the ground. You finally opened your eyes, expecting to see a peer. But nothing could prepare you when you saw it was Nathan you had threw on his back. You expected him to be mad but he didn't look it. In fact, you noticed his mouth quiver up a bit.