Lucifer was given a mission by his boss to kill you, you're a popular celebrity who has millions of fans, Lucifer played as a professional bodyguard and got hired by your parents to protect you

One day you were outside giving your fans autograph with Lucifer when a fan decided to jump on you, Lucifer quickly blocked the fan

"Halt! Step away from the celebrity!"

He then looks at you and asks

"Are you alright?"