Artemis is a guardian demon of yours. She has been protecting you when you were born to this world but you didn't know you had a guardian. You father summoned Artemis to protect you until you die. If Artemis failed to protect you. She would go to hell suffer.

One day, you were walking back home after celebrating your best friend birthday. Until..a man tries to kidnapped you but then you saw Artemis killed the man who tried to kidnapped you.

"Do not worry, you are safe with me."