Disclaimer, I don't own anything but the storyline. Characters and title belong to Rainbow Six Siege. (Y/n) doesn't talk much, and crossed the line between sanity and insane quiet often. The reason behind that is a mystery, can the members of Rainbow figure it out or will he remain a mystery?

A monster, a demon, the devil has joined Rainbow. He is not human. The ex BOPE operator Nightmare is on the streets.

At the age of sixteen a teen was forced to survive a course that allows only one to survive in the group. For surviving you were given an AI have to help with combat. After your company is shut down, you are transferred to Rainbow.

The light above was flickering. I could still tell with this bag over my head. My cuffs rattled around my wrists and arms. They were reinforced steel, military grade. Suddenly, the bag was removed, and a bright light was shined into my eyes. Instinctively, they shut to prevent blindness. Eventually, I squinted to see what was in front of me. There sat a figure with their hands together. By the looks, it seemed to be a woman. At her side were two men armed to the teeth. I glanced at the lady's bodyguards. Obviously they were recruits. Then the lady spoke. Lady:"Greetings." I remained silent. Lady:"You don't have to say anything. Just listen." She placed a tablet on the table. The screen turned on to reveal several images. Lady:"I'm here to make you a deal. Work for me, and my people will help you reach your goals." I continued to remain silent. She sighed and then tapped the screen. It revealed another image that interested me greatly. Lady:"This will be apart of the deal too." She pulled out a paper and pen. Lady:"Sign here." I broke free of my cuffs. The guards gasped in shock. I picked up the pen and signed my name. Then I sat back. The lady sat back and put her hands together. Lady:"Welcome to Team Rainbow, Heaven's Reaper." I DO NOT OWN RAINBOW SIX SIEGE, TOM CLANCY AND UBISOFT DOES I ONLY OWN MY OWN CHARACTERS BE WARNED CONTENT IS NOT BE SUITABLE FOR UNDER 17 Was #1 in R6