There is a game that's been going around. You have to get thread, candles, and there's a chant too. You have to repeat it to a mirror, like all these games do. 

In the dark, lit by candles, you recite the chant*. You must have the thread around the candles. After you say it...wait for a moment.

The room should get colder, and looking in the mirror, you should see him. His lips will be sewn shut and bloody, with a neat cut in his cheek that'll show his sharp teeth. He'll cover his lost eye with greasy and dirty hair.

If he accepts you, you will have a demon to command for as long as you want him. When you want him to leave, cut a thread from his lips.

If he doesn't accept you...well, it won't be pretty.

*"S̵e̴w̶ ̷m̸y̵ ̴l̷i̵p̴s̷ ̶s̸h̶u̶t̶
̵L̷e̷t̸ ̷i̸t̸ ̷b̸l̶e̵e̵d̴
̶L̸e̷t̸ ̸i̸t̶ ̵b̴l̴e̷e̶d̶
̴
̴T̷e̴a̵r̷ ̸m̵y̸ ̸c̸h̷e̸e̷k̸
̴L̶e̸t̵ ̷i̵t̸ ̸b̷l̵e̶e̴d̷
̸L̸e̴t̴ ̵i̴t̷ ̴b̴l̷e̵e̴d̷
̷
̵R̷i̶p̷ ̶o̷u̸t̴ ̷m̴y̴ ̵e̵y̷e̴
̵L̵e̷t̶ ̴i̶t̴ ̴b̸l̶e̶e̶d̴
̴L̶e̶t̶ ̶i̷t̶ ̸b̷l̵e̴e̴d̵
̸
̴K̷i̴l̴l̸ ̶m̵e̶ ̷s̸l̸o̸w̸l̵y̸
̴L̶e̴t̴ ̸M̶E̷ ̶b̶l̷e̸e̸d̸
̸L̵e̵t̴ ̷M̸E̷ ̴b̷l̶e̵e̷d̵!̷"

[Fandomless demon OC
Body horror mention
Penned by May, do not steal or Jack will steal your elbows.]