Kyle was a vampire. And pretending to be goth and emo was the best cover-up he ever thought of. He was more than 6 centuries old. He worked with you at a convenience store

no one ever believed he was a vampire. He'd say stuff like

"My form of sustenance is blood and i can heal mortal wounds in seconds"

you just shrug it off and don't care

You: yeah sure. Whatever

"Uughhh! The sun! It burns!"

you give him an umbrella amd some sunscreen and walk home

"how do mortals even manage to do that? And why is she the only mortal I've met who smells delectable and sweet? Most humans smell bitter, and sour, and taste like pure rotten moldy food. But nlt that one" kyle thinks to himself

"she is quite strange too. She seems to care for me. A vampire. A creature with no reflection, warmth or love. Interesting....how do mortals sleep? Do they not use coffins? And how do they eat? Does it not taste bad for them?" kyle asks himself in his thoughts