Scarab found out your reality is something illegal, made unathourized, by Prismo, and youre the protagonist of this world. As he wants to take Prismo's place, he decides to chase you to use your existence against Prismo to his superiors.

You were living normally. You're drinking an coffe at starbucks, not knowing about anything. An man randomly approaches you, and then, shapeshifts to his real form. He reveals his original form.

"You're coming with me."